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Posted payment to wrong customer

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Posted on by AP-06052221-0

I posted a payment to the wrong customer (one below in my customer list)...in November 2025. It won't let me #Unnapply Entry". Can I simply reverse the transaction and then apply it to the correct customer?

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Microsoft Dynamics NAV

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Teagen Boll 3,291 Super User 2026 Season 1 on at

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You would want to make sure that payment isn't applied to anything and then you would want to reverse it and then you would recreate it and apply that correct payment to the customer accordingly.

When reversing it you may not want to post in that older period if its closed. In that case you could make a manual entry in the cash receipt journal that is a mirror of the original transaction and then apply that correcting entry to the customer. In summary the steps would be.

1. Create a reversal for the original transaction through 1 of 2 methods:

-Method 1: Reverse Transaction from Customer Ledger Entries page

-Method 2: Post a manual entry that is a mirror of the original transaction but set posting date as today and then apply it the old incorrect transaction.

2. Create the payment again for the correct customer (either dated for the correct date from November 2025 or today depending on the method you used above).

3. Apply that payment to the invoice accordingly

Best,

Teagen Boll

Work: Catapult ERP

Social: LinkedIn

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YUN ZHU 102,123 Super User 2026 Season 1 on at

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Generally, adjustments are made this month. If you force it to be added to November, it may affect financial reports, especially if there are foreign currencies involved.

Hope the following can give you some hints.

https://yzhums.com/22565/

Thanks.

ZHU

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OussamaSabbouh 17,906 Super User 2026 Season 1 on at

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Hello,
yes, but with one important condition: if the payment is already applied, BC normally expects you to unapply it first, then you can reverse the payment transaction and post/apply the payment again to the correct customer; Microsoft specifically says for payments applied to the wrong customer, you must first Unapply Entries, then reverse from the G/L Register / Reverse Transaction depending on how it was posted. If BC will not allow Unapply Entries, check the usual blockers first: you may not be selecting the latest application entry, the period may be closed/blocked for November 2025, permissions may be missing, or the entry may have been posted/reconciled in a way that needs reversing from the register. I would not just post a manual opposite entry unless finance confirms the audit impact; better approach is unapply → reverse → repost/apply correctly, or ask your admin/partner to review why unapply is blocked.

Regards,
Oussama Sabbouh

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AndrewThomas81 2,258 on at

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Why won't unapply entry work?

You can process the payment on the correct customer and process a refund on the wrong customer

Kind Regards

Andrew Thomas FCCA MCP
YouTube - Use Business Central
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Grigorios Mavrogeorgis 2,579 Super User 2026 Season 1 on at

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Hi,

Short answer is yes, the payment can be fixed.

If the period is still open and nothing else got applied to that payment, the cleanest way is Reverse Transaction from the G/L Register. It undoes both bank and customer side in one move. After that, the payment is posted again to the correct customer and applied to the right invoice.

If Reverse Transaction is also blocked, then a small General Journal does the job. One line debits the wrong customer, one line credits the correct customer, same amount, same date if possible. Bank stays untouched, P&L is not affected. Then both sides are applied — the new entry on the wrong customer clears the old payment, and the new entry on the correct customer becomes the payment to apply against the invoice.

What is the exact message shown when Unapply is tried? That usually tells which of the two paths is needed.

✅ Tick the checkbox below to mark the answer as verified, if it helped resolve your question.

Regards

Gregory Mavrogeorgis

Work: GMSOFT Limited
Blog: Inside Business Central
LinkedIn: www.linkedin.com/in/gregorymavrogeorgis

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AP-06052221-0 10 on at

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Using a small GJ transaction, what GL would I debit/credit? Cost of goods?

Another suggestion was to create a Purchase Invoice to clear the credit and a CM to clear the wrong payment application??

Thanks for the help!

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