For stores selling in installments on Shopify, iyzico does not automatically reflect the interest rate difference in the order record; the order total only shows the product price. iyzico Adminis a free application developed by iyzico that automatically adds this difference to the order details in the Shopify Admin panel. As Nodus Works, we have frequently observed that this discrepancy complicates accounting reconciliation for brands that rely heavily on installment sales when setting up payment integrations in Shopify stores.
How to Display the Interest Rate Difference in Shopify Order Records?
The way to display the interest rate difference in a Shopify order record is to install the iyzico Admin application; the app automatically adds the interest rate difference incurred in installment payments to the order details in the Shopify Admin panel.
The application writes the interest rate difference amount, which it reads from the iyzico payment result, directly into the order's metafield. This data is background/accounting datathat the store owner sees when opening the relevant order in the Shopify Admin panel; it is not automatically shown to the customer in the order confirmation email or on their account page. Stores that wish to make this visible to the customer must add this metafield to their theme or email template separately; this is not an action performed by the application itself.
Critical Note: iyzico Admin only works for installment transactions made through the iyzico payment infrastructure. PayTR, or other virtual POS providers like Param, cannot be read by this application for interest rate difference data.
The application is based in Turkey, the interface is in Turkish, and developer support is provided via docs.iyzico.com. It is free and does not require any additional payment or subscription.
Why Doesn't the Interest Rate Difference Automatically Reflect in the Order Total?
Because the interest rate difference is an amount calculated by the payment provider (iyzico) rather than Shopify's order engine, it does not match the order total. The installment selection and the associated interest rate difference are determined within iyzico's own interface during the payment step; this information is not passed back to Shopify by default.
In practice, this difference becomes a problem in two areas: month-end accounting reconciliation (where bank statements and order reports are compared manually) and partial refund calculations (where it is impossible to determine from the order record whether the refund amount should include the interest rate difference).
Interest Difference Calculation Example: The Gap Between Order Amount and Collection
The Interest difference increases as the number of installments grows, causing the gap between the order amount and the actual collection to widen accordingly. For a 1,000₺ product, if 6 installments are selected, the amount collected from the customer may range between 1,050₺ and 1,090₺ depending on the bank's maturity difference rate; however, the order record in Shopify will still show 1,000₺.
Tip: The rates in this table vary based on the bank and iyzico's current commission structure; check the exact Interest difference rate in your iyzico Merchant Panel installment settings. The key point is not the rate itself, but the fact that the gap between the order record and the actual collection grows as the number of installments increases.
In a store with 200 installment orders per month, assuming half of these orders are processed in 6 installments, a discrepancy of approximately 7,000₺ accumulates between the order records and the amount deposited into the bank account for this group alone. While these differences may seem small individually, they become a collective item at the end of the month that the accounting team must manually reconcile.
Manual Reconciliation vs. iyzico Admin Comparison
Before installing iyzico Admin, Interest difference reconciliation requires the store team to manually compare bank statements with order reports; once the app is installed, this difference appears directly in the order record, eliminating the need for manual comparison.
How to Install iyzico Admin?
- Open the iyzico Admin page in the Shopify App Store
- ClickAdd App and select your store
- Confirm the connection with your iyzico account
- The app requests access to the last 60 days of order data to retroactively process maturity differences for existing orders
- Once the installation is complete, maturity differences for new orders will automatically appear in the metafield area
Frequently Asked Questions
Is iyzico Admin paid? No, the app is completely free. It does not require any additional subscription or transaction fees.
Does iyzico Admin work with PayTR or other payment providers? No. The app can only read maturity differences for installment transactions made through the iyzico payment infrastructure.
Where does the maturity difference appear in the order record? It appears in the metafield area within the order details; you can see it when you open the relevant order in the Shopify admin panel.
What data does the application access? It requests access to order data from the past 60 days and basic device/browser information; this is necessary to process existing orders retroactively.
Can the customer see the maturity difference on the order page? No, they do not see it by default. iyzico Admin writes this difference to the metafield area in the admin panel, which is visible to the store owner; stores that wish to display it to the customer must add it to their theme or email templates separately.
Conclusion
iyzico Admin solves a narrow but real operational problem: the maturity difference not being reflected in the order record. It is a free application that takes only a few minutes to set up for stores selling in installments with iyzico. You can via the Shopify App Store check out the application.
