Shopify Çiçeksepeti Integration

To sell your Shopify products on Çiçeksepeti, the two systems have to keep talking to each other. Çiçeksepeti does not publish an official Shopify app, so an integration tool builds that connection. Setup starts with the seller application and closes with your first order. In between, the product, stock, price, and order flows are each built separately, and Çiçeksepeti's delivery, approval, and invoice rules cut into that flow.

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Shopify Çiçeksepeti integration what is it?

A Shopify Çiçeksepeti integration is the connection that keeps your products, stock quantities, prices, and incoming orders aligned in both systems. Because Çiçeksepeti does not publish an official Shopify app, that connection is built with an integration tool, and the tool takes over the copying work between the two panels.

Setup starts once your Çiçeksepeti seller application is approved. After approval you request your integration credentials from the panel, map categories and required attributes, define each product's delivery type, and set your price and stock rules. When delivery type and category mapping fall outside the standard template, Nodus Works' Shopify integration and custom app development service completes this setup. The last step is a test order placed with a single product.

Once the connection is live, day-to-day work runs from one place. Orders placed on Çiçeksepeti land in Shopify, stock drops on both sides when a product sells, and you manage prices through a rule instead of rewriting them product by product. Carrying the order's delivery day and time slot onto the Shopify side is a separate setup decision.

WHAT SYNCS

What syncs between Shopify and Çiçeksepeti

Once the connection is live, product data, stock, prices, orders, shipping, and invoices sit in the same flow. The six headings below cover the questions that come up most often in a Shopify Çiçeksepeti integration.

Çiçeksepeti product transfer and sync

Your Shopify products are sent to Çiçeksepeti after category and required-attribute mapping is in place. Every product that is sent enters an approval process, so finishing the transfer is not the same as going live.

Shopify Çiçeksepeti inventory sync

When a sale happens on one channel, the other channel's quantity drops as well, so the two stores do not sell the last unit twice. You decide which Shopify location is opened to the channel.

Shopify Çiçeksepeti price sync

The Çiçeksepeti price does not have to match the Shopify price, and in most cases it should not. You define a separate rule that includes commission and the shipping cost that stays with the seller, and both sides update from that rule during campaign periods.

Çiçeksepeti order transfer

Orders placed on Çiçeksepeti are written into Shopify, so you work from the same list as the warehouse. Delivery day and time slot are not a standard Shopify field, so where that information is written is decided during setup.

Çiçeksepeti shipping and courier flow

You can work with the channel's contracted carriers or with your own courier operation. Using your own shipping agreement and your own rates, in Çiçeksepeti's own wording, goes through an integration.

Çiçeksepeti invoice flow

You issue the invoice in your own e-archive or e-invoice system; Çiçeksepeti asks you to upload the invoice from the panel. Because the product may be a gift, the invoice does not go in the parcel; that rule changes the habit you built on the Shopify side.

TWO SEPARATE LINES

Which side of Çiçeksepeti are you selling on?

Çiçeksepeti looks like a single marketplace, but there are two separate businesses inside it, and the integration decision starts there. The seller type you pick on the application decides which side you are on; a Shopify connection does not do the same job on both sides.

Marketplace side: a classic ecommerce flow

This is the side where you sell your own products at your own price. The product card is yours, you write the price, and you ship by carrier. The Shopify integration in practice covers this side and looks like the flow on other marketplaces.

Flowers and same-day service: an agency model

On this side the site sale price, the tariffs, and the shared attributes are set by Çiçeksepeti. Because the price is not yours, sending a price from Shopify has no counterpart; the work is a city delivery operation, not a data sync.

Running both at once

There are sellers who both ship products by carrier and run same-day service, but the two sides have separate rules. Building the integration for the marketplace side and running the service side from the panel is healthier than forcing both into a single flow.

The table below shows the difference between the two sides at a glance. Being clear about which column you are in before setup also makes it clear what you should expect from the integration.

Topic	Marketplace side	Flowers and service side
Who sets the price	The seller	Çiçeksepeti
Who owns the product content	The seller's own product card	Çiçeksepeti's catalog
Delivery	Carrier	Same-day service, courier, and a time slot
Infrastructure needed	A warehouse is enough	In-city delivery capability
Fit for a Shopify integration	High, every field that needs to sync is there	Low, price and content are not yours

SETUP

How do you set up a Shopify Çiçeksepeti integration?

The six steps below cover the full setup, from the seller application through the first test order. Most of the work happens in the Çiçeksepeti seller panel, so you need an account with access to it; on the Shopify side it is enough for the store to be live.

Open your Çiçeksepeti seller account

The application is submitted on ciceksepeti.com, and the form asks you to pick a seller type. The agreement and the platform rules are expected to be uploaded stamped and signed on every page, so this step does not finish in a single session.

Request your integration credentials

These details sit on the Integration Credentials screen under Account Management in the panel, but the field comes back empty if they have not been defined yet. In that case you open a support request from the panel under the integration processes heading; separate identities are issued for test and live.

Map categories and required attributes

When you pick a category, that category's required attributes are listed and all of them have to be filled. Some attributes produce variants, so mapping is not only a category choice; it is also building the product structure.

Define delivery type and brand information

Çiçeksepeti asks for delivery type as a field on the product itself and does not accept an unbranded product. You have to write per product whether you ship by carrier, same-day service, or both, and you have to define your brand in the panel.

Set your price, stock, and invoice rule

Instead of sending the Shopify price as-is, set a channel price that includes commission and the shipping cost that stays with the seller. Because the invoice does not go in the parcel and is uploaded from the panel, the invoice flow also has to be part of this setup.

Confirm the flow with a test order

Place an order with a single product and check that it lands in Shopify, that the delivery-day information is carried across, that stock drops, and that the invoice is uploaded to the panel. If those work, you can open the rest of the catalog.

The table below shows which Çiçeksepeti fields your Shopify fields map to, using the names you see in the panel.

What you have in Shopify	What it maps to on Çiçeksepeti
Title	Product name
SKU	Seller stock code
Product group	Main product code, keeps variants together
Barcode	Optional, cannot exceed 40 characters if entered
Price	Sale price
Compare-at price	List price
Inventory	Sellable quantity
Brand	Required, unbranded products are not accepted
Image	Product images, cannot carry seller information
No Shopify field	Delivery type, delivery day, and time slot

The last row is the part of this channel that is missed most often. Delivery type, delivery day, and time slot are details Çiçeksepeti asks for that Shopify does not carry; where those are written is defined once on the integration side.

Where are you in the setup?

Tell us about your catalog and current setup, and we will work out how the Shopify Çiçeksepeti integration should be built for your product structure. You do not need to fill in a form, reach us directly by phone, email or WhatsApp.

Get in touch 0850 888 2815 hub@nodusworks.com WhatsApp

SELLER ACCOUNT

What do you need to become a Çiçeksepeti seller?

To sell on Çiçeksepeti you need to own a company, and a sole proprietorship is enough. Being a taxpayer and being able to issue invoices is required; the only exception is handmade-product selling, and that application type accepts a tax-exemption certificate. Sales are made only in Turkish lira.

Company and tax documents

A current tax certificate and a signature circular sit at the top of the list. A sole proprietorship and a simple partnership add an identity document; a simple partnership also adds the partnership agreement.

Uploading contracts and forms signed

The dealer information form, the seller agreement, and the platform usage rules are uploaded stamped and signed on every page. The trade registry gazette and an activity certificate are not required on this channel.

Extra documents asked for by category

Food and drink and edible-flower sales ask for an establishment approval or registration document from the Ministry of Agriculture and Forestry. Without that document, sales in the related category are not opened.

The current document list is always on the application screen at ciceksepeti.com. Seller approval, issuing integration credentials, and products appearing in the store are separate processes, so the timeline should not be tied to a single date.

Stage	How long it takes	Note
Seller application approval	Çiçeksepeti does not commit to a timeline	The process does not start if signed agreement pages are missing
Issuing integration credentials	Depends on the support request	A request has to be opened if the field is empty in the panel
Building the connection	Same day	Short if you are using a ready-made tool
Products going live	Depends on the approval process	Every product waits for approval and can come back with a rejection reason
Steady sales	The first weeks	Price, delivery performance, and return rate start to matter here

PRICING

How does Çiçeksepeti commission show up in the price?

Çiçeksepeti commission runs by category and the rate is written into your seller agreement. The category you pick on the application sets the rate in the agreement; when you sell in another category, that category's rate is applied. The channel does not publish a public rate list; what counts is your agreement and the current value in your panel.

That does not mean you do not know the rate: for every order Çiçeksepeti gives your payout amount, its own deduction, and the planned payment date separately. Instead of guessing, you can see the deduction that actually happened order by order and set your price rule against your own number.

If you send the Shopify price to Çiçeksepeti as-is, commission comes straight out of your margin. Instead you set the channel price as a rule: commission, any service fee, and a shipping share are added on top of the Shopify price. Once the rule is defined you do not have to write a price on every product.

Know that this channel has a limit when you cut a price: the new sale price cannot go below half of the current sale price. A deep campaign set in one move in Shopify therefore comes back on Çiçeksepeti; the discount has to be made in steps. The gap between compare-at price and sale price also has a lower and upper bound, and the compare-at price has to be the lowest sale price of the last thirty days.

Accounting for shipping cost is especially important on this channel. Because free shipping is offered to the customer, the outbound charge stays with the seller, and return shipping is written to the seller the same way. On low-value products those two lines, not commission, decide the margin.

Payouts also run on their own calendar. The amount hits your account on the first Wednesday after the order is delivered and your category's payment period has ended; the distance between sale day and money day therefore changes by category. You have to build your cash-flow plan against this calendar, not against the sale date.

CATALOG

Where do Çiçeksepeti catalog rules diverge from Trendyol?

If you arrive at Çiçeksepeti with habits built on Trendyol or Hepsiburada, product approval is the first place that surprises you. How a product goes live, what cannot be written in the description, and the brand requirement all work differently here.

Every product waits for approval

A product you send does not go live directly; it stays in waiting-for-approval and goes through review. A bulk upload is not the same as going live, so the list has to be read row by row on setup day.

An unbranded product cannot be sold

Çiçeksepeti treats brand as required and asks you to define your brand in the panel. Products that left the brand field empty on the Shopify side therefore come back from review.

Contact details cannot be written in the description

Writing a company name, site address, email, or phone number in the product description is a rejection reason. If those details sit in your Shopify descriptions, the whole catalog comes back on the same ground.

The image cannot carry seller information

Seller logos or contact details do not belong on images. Knowing before setup that you cannot use branded images prepared for your own store makes the work easier.

The main product code holds variants, not the barcode

A barcode is not required on this channel; what holds variants together is the main product code, and each variant becomes its own row with its own stock code. The detail that actually matters: once a barcode is defined on a product it cannot be changed, so it has to be right on the first send.

Product safety information is requested

The listing has to carry manufacturer or importer details, and those fields are not standard in Shopify. Collecting the information before setup keeps part of the catalog from coming back with missing data.

You also have to account for an updated product being able to go back into review. When you change the title or description on a live product, it can temporarily return to an approval status; that is why staying on the price and stock side during campaign days is safer than changing content.

DELIVERY

How are delivery day and time slot managed?

This is the most important operations difference that sets Çiçeksepeti apart from other marketplaces. The customer places the order for a specific day and a specific time slot; the rule is not to ship within a given window, it is to deliver on a given day.

The order is placed for a day and a time slot

The customer picks the delivery date and time slot, and you prepare the order against that date. Shopify does not have this as a standard field, so it has to travel with the order; otherwise the warehouse prepares it on the wrong day.

Delivery type is a field on the product

Whether the product ships by carrier, same-day service, or both is written per product. The wrong type makes you take orders for a delivery method you do not offer.

Same-day delivery needs a region definition

If you do same-day delivery, you define which regions you serve and in which time slots. That definition is updated from the panel and has to be updated when your coverage changes.

Flower orders have a customer-approved photo step

On flower shipments a photo of the prepared product is uploaded to the system, sent to the customer for approval, and the order leaves only after that approval. No Shopify flow has a counterpart for this step; it runs by hand.

Your own shipping agreement needs an integration

You can work with the channel's contracted carriers, but using your own shipping agreement and your own rates, in Çiçeksepeti's own wording, requires an integration. On stores with large shipment volume, this is where the integration pays for itself.

The invoice does not go in the parcel

Because the product may be a gift, the invoice does not go in the box and is uploaded from the panel; putting a brochure or a catalog in is also forbidden. If you have a Shopify setup that prints the invoice with the parcel, it has to be split for this channel.

STOCK

Why does stock collide, and how do you prevent overselling?

Stock and price updates do not hit Çiçeksepeti instantly; they first join a queue. A message that the system received the request does not mean the product was updated, so setups that never follow the result end up with oversells and cancellations.

The update does not land instantly, with a four-hour ceiling

The new quantity you send joins a queue and is processed when its turn comes. Çiçeksepeti says stock and price updates will finish within four hours at the latest, and product create and product update within twenty-four hours at the latest. It is usually much faster, but the plan has to be built against that ceiling; if the old quantity is still showing on Çiçeksepeti, that queue is the first place to look.

Two channels sell from the same stock

If Shopify and Çiçeksepeti sell from the same warehouse, the last unit can sell on both sides. In that case one of the orders turns into a cancellation, and the cancellation hits your store performance.

Writing stock on a product still in review

A product that has not finished approval does not appear in the store, so stock written on it does nothing. Treating those rows as on sale leaves you holding channel stock that does not exist in Shopify.

Writing stock from a multi-location Shopify setup

Sending the sum of every location makes unsellable units appear on the channel. If you do same-day delivery, which warehouse serves which region also matters.

Unpublishing in Shopify is not enough

When you unpublish a product in Shopify, that does not travel to Çiçeksepeti; the channel does not let the product itself be set to inactive through the API. What you can do is set every variant to inactive; closing the product entirely requires a support request from the panel.

Cancellations and returns restore stock

A cancelled or returned product goes back into sellable stock. If that movement is not written to Shopify, the two quantities drift apart over time and the only way to fix it is a count.

Hiding the last few units from the store

Not showing the last few units on the channel at all reduces your sellable stock, but it also lowers cancellation risk. On an order placed for a specific day, the cost of a cancellation is higher than on a normal carrier order.

There is also a difference on the return side: requests split into refund and exchange, and the two have different outcomes. When you approve a refund the order closes; when you approve an exchange the order returns to a "new order" status and drops back into your order list. A setup that does not split those two makes the warehouse treat an exchange as a new sale. Custom-designed products and perishable food sit outside the right of withdrawal, and return shipping is written to the seller. Undelivered parcels also wait at the branch for a set period and then come back to you.

Overselling turns into a cancellation, and a cancellation hits your store performance. On Trendyol and Hepsiburada barcode, commission, and approval run on different rules, so writing the same stock rule to every marketplace leaves one channel exposed. If you are opening a second channel next to Çiçeksepeti, take a look at Station to manage products, stock, prices, and orders from one panel.

COMMON MISTAKES

The most common mistakes in the Shopify Çiçeksepeti integration

The nine headings below are the mistakes that show up most often in setup. The outcomes look alike as well: the product comes back from review, the order is prepared on the wrong day, or the margin comes out lower than expected.

Looking for integration credentials in the panel

If these details have not been defined yet they appear empty in the panel and are requested with a support ticket. Time spent hunting for a button stops setup on the second step.

Not carrying delivery-day information

The order is placed for a specific day, and Shopify does not have this as a standard field. When it is not carried across, the warehouse prepares the order on the wrong day and the delivery is missed.

Leaving contact details in the description

Descriptions that contain a company name, site, phone, or email are a rejection reason. A catalog sent with the same template can come back in full for that reason.

Sending the brand field empty

Unbranded products are not accepted, and the brand has to be defined in the panel. Stores that do not use this field in Shopify get stuck here during setup.

Using your own branded images

Seller logos or contact details cannot sit on images. An image set prepared for your own store has to be split for this channel.

Writing the same price to both channels

Sending the Shopify price as-is does not cover commission and the shipping cost that stays with the seller. The channel price is set with a separate rule.

Not accounting for shipping cost

Because free shipping is offered to the customer, both the outbound charge and return shipping stay with the seller. On low-value products those two lines decide the margin.

Putting the invoice in the parcel

Because the product may be a gift, the invoice does not go in the box and is uploaded from the panel. A setup that prints the invoice with the parcel has to be split for this channel.

Treating a bulk upload as going live

Every product goes through an approval process and some of them come back with a rejection reason. When the result is not read, products thought to be unsold have never gone live.

SCENARIO

Three common problems and how we solve them

The three setup scenarios below show how we handle Shopify Çiçeksepeti integration problems we have solved in stores we connected.

Orders being prepared on the wrong day

ProblemThe connection was working, orders were landing in Shopify, and the warehouse was preparing them in the order they arrived. Delivery complaints jumped in the first special-day period, even though no order had been missed.

CauseÇiçeksepeti takes the order for a specific day and time slot, while Shopify was listing orders by arrival. Delivery-day information was never carried to the Shopify side, so the warehouse could not tell today's work from work three days out.

SolutionDelivery day and time slot were written onto the order as a separate field, and the warehouse list was sorted by delivery date instead of arrival date. Same-day service regions were put on a separate flow, and carrier shipments stayed in their own queue.

The catalog coming back from review

ProblemThe same product list that already worked for Trendyol was sent to Çiçeksepeti. Most products stayed in waiting-for-approval and some came back with a reason. Sales were expected for two weeks while the catalog had never gone live.

CauseProduct descriptions still carried the store name and contact details, some images had a brand logo, and some products had an empty brand field. All three are rejection reasons on this channel and were not a problem on Trendyol.

SolutionDescriptions were moved onto a channel-specific template, a logo-free image set was prepared, and brands were defined in the panel. The catalog was sent in groups, and the next group opened only after each group's result was read.

Profit falling while sales rose

ProblemOrder volume was above expectation, yet profit at month end came in below it. Prices matched Shopify and no error was visible.

CauseThe Shopify price was being sent to the channel as-is, so commission came straight out of margin. On top of that sat the cost of free shipping offered to the customer and return shipments; on low-value products a sale had turned into a loss.

SolutionThe channel price was rebuilt with a rule that includes commission and a shipping share. Low-value products were treated as a separate group, some of them were turned into packs, and the payout calendar was written into the cash-flow plan.

STATION

Shopify Çiçeksepeti integration

Station is the tool we built to run the product, stock, price, and order flow from a single panel. When you add Trendyol or Hepsiburada, each channel gets its own rules.

See the integration Talk to us about setup

FAQ

Frequently Asked Questions

How do you set up a Shopify Çiçeksepeti integration?

Setup starts once your Çiçeksepeti seller application is approved. After approval you look at the Integration Credentials screen under Account Management in the panel; if the field comes back empty, a support request is opened under the integration processes heading. You then map categories and required attributes, define each product's delivery type and brand information, and set your price and stock rules. The last step is confirming the flow with a test order placed with a single product.

Is there a ready-made Shopify app for Çiçeksepeti?

Çiçeksepeti does not have a Shopify app it publishes itself. The connection is built with an integration tool or with software you write; most of those tools are not Shopify apps, they are a separate panel that connects to Shopify. Their scope is not one-size-fits-all either, so before setup you have to check what they cover on the product, stock, order, and invoice side.

Where do you get Çiçeksepeti integration credentials?

These details sit on the Integration Credentials screen under Account Management in the panel. If they have not been defined yet the field comes back empty and a support request has to be opened from the panel under the integration processes heading; separate identities are issued for test and live. This is where the channel diverges from Trendyol and Hepsiburada, where you take the credentials from the panel yourself.

Is a company required to sell on Çiçeksepeti?

It is. You need to be a taxpayer and be able to issue invoices, and a sole proprietorship is enough for this. The only exception is handmade-product selling: that application type accepts an application with a tax-exemption certificate. Sales are made only in Turkish lira.

Which documents are requested?

A current tax certificate, a signature circular, the dealer information form, the seller agreement, the platform usage rules, and a bank document are the main items requested; the agreement and the rules are expected to be stamped and signed on every page. The trade registry gazette and an activity certificate are not required on this channel. Food, drink, and edible-flower sales also ask for an establishment document from the Ministry of Agriculture and Forestry.

I do not sell flowers. Is this channel a fit for me?

It is. Çiçeksepeti has two separate businesses inside it: the marketplace side where you sell your own products at your own price, and the flowers and same-day service side where price and content are set by Çiçeksepeti. The Shopify integration in practice covers the marketplace side, and the flow there looks like other marketplaces.

Who sets the price on the flower side?

On the flowers and same-day service side, site sale prices and tariffs are set by Çiçeksepeti. Because the price is not yours, sending a price from Shopify has no counterpart; on that side the work is a city delivery operation, not a data sync.

How are Shopify products transferred to Çiçeksepeti?

Product transfer starts by binding your Shopify category to a Çiçeksepeti category, and a product cannot be sent until that category's required attributes are filled. A sent product does not go live directly; it is taken into review in a waiting-for-approval status. That is why finishing the transfer is not the same as going live.

Why is my product waiting for approval, or why was it rejected?

The most common reasons: the product description mentions a company name, site address, phone, or email; the image has a seller logo or contact details; the brand field is empty; or the description does not describe the product well enough. Manufacturer details on the listing are also requested. You also have to account for a live product going back into review when you change its content.

Can I sell an unbranded product on Çiçeksepeti?

You cannot; brand information is required and you have to define your brand in the panel. Stores that do not use the brand field on the Shopify side get stuck here during setup; you need to be sure that field is filled before you send the catalog.

Is a barcode required on Çiçeksepeti?

It is not required on the marketplace side; it is an optional field. Entering one still helps, because products with a barcode can appear in Google shopping results. If you enter one it cannot exceed 40 characters and cannot contain spaces or special characters. Two details to watch: a barcode is required on the Çiçeksepeti Market side, and once a barcode is defined on a product it cannot be changed later.

How do variant products go to Çiçeksepeti?

The main product code holds variants together; each variant becomes its own row with its own stock code. Which attributes produce a variant depends on the category, so it does not line up one-to-one with Shopify's option structure and mapping has to be built per category. You cannot change a variant's attribute later: instead of turning a size 36 into a 37, a new variant is opened for 37.

How are delivery day and time slot carried to Shopify?

The customer places the order for a specific day and a specific time slot, and you prepare the order against that date. Shopify does not have a standard field for this, so the information is written either to the order note or to a custom field. When it is not carried across, the warehouse prepares the order by arrival and the delivery day is missed; on this channel that is the most expensive mistake.

What do you need for same-day delivery?

You need to define which regions you serve and in which time slots, write the product's delivery type to match, and have in-city delivery capability. You can run delivery with the channel's contracted courier firms or with your own courier operation. When your region definition changes, it has to be updated from the panel.

Can I use my own shipping agreement?

You can, but Çiçeksepeti asks you to work through an integration to ship on your own shipping agreement and your own rates. You can also work with the channel's contracted carriers; in that case the rate list is requested from the panel. On stores with large shipment volume, this is usually where the integration pays for itself.

Who pays the shipping charge?

Because free shipping is offered to the customer, the outbound charge stays with the seller, and return shipping is written to the seller the same way. On low-value products those two lines decide the margin more than commission, so the channel price has to include a shipping share as well.

How is Çiçeksepeti commission reflected in the price?

Commission runs by category and the rate is written into your seller agreement; when you sell in another category, that category's rate is applied. The channel does not publish a public rate list, so the value that counts is your agreement and the current rate in your panel. The channel price is set with a rule that adds commission and a shipping share on top of the Shopify price.

When do payouts hit the account?

Payment is made on the first Wednesday after the order is delivered and your category's payment period has ended. The distance between sale day and money day therefore changes by category; the cash-flow plan has to be built against this calendar, not against the sale date.

Can I put the invoice in the parcel?

You cannot. Because the product may be a gift, the invoice does not go in the box and is uploaded from the panel; putting a brochure or a catalog in the parcel is also forbidden. If you have a setup that prints the invoice with the parcel, it has to be split for this channel.

How do returns and exchanges work?

There is no exchange on this channel; the customer returns the product and places a new order. Return requests are followed from the panel and the product arrives at the warehouse address on the dealer information form. Custom-designed products, perishable foods, and hygienic products sit outside the right of withdrawal. Undelivered parcels also wait at the branch for a set period and then come back to you.

How does Shopify Çiçeksepeti inventory sync work?

When a sale happens on one channel, the integration also drops the other channel's quantity. That update does not land instantly; it first joins a queue, and a send-completed message does not mean the product was updated. Çiçeksepeti says it will finish a stock and price update within four hours at the latest. In practice most updates process much faster, but not showing the last few units on the channel at all lowers cancellation risk inside that four-hour window.

How long does the integration take?

Building the connection finishes the same day. Two things set the timeline: seller application approval and issuing integration credentials. Çiçeksepeti does not commit to a timeline for approval, and because credentials are issued through a support request this step has to be put at the front of setup.

Can I also connect to Trendyol and Hepsiburada at the same time?

You can, but each marketplace has its own catalog rules and commission rate. Çiçeksepeti puts the product through human approval while Trendyol looks at the queue result, and Hepsiburada writes the product to the catalog first and to the sale list second. Delivery-day logic also exists only on Çiçeksepeti, so when the same stock is opened to more than one store the rules have to be set separately for each channel.