Vendor Invoice Posting Error: Prepayment Voucher Cannot Be Reversed

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Posted on by Imran Mustafa001

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I am encountering an error (Invoice: INV 8768 - Voucher numberi0006, transaction type Prepayment. and account number 11500 (HQ cant be reversed.). when trying to post a vendor invoice, even though the related prepayment has already been posted. Could someone please guide me on why this happens and how to resolve it?

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Dynamics 365 Supply Chain Management

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H.M.Burhan 390 Super User 2026 Season 1 on at

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Hi,

It seems that you are trying to reverse the purchase order invoice, but the system is giving an error because a prepayment invoice is settled against it.

First, you need to unsettle/reverse the prepayment invoice. After that, you can reverse the purchase order invoice.

Here are the details.

Cheers,

Burhan

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Imran Mustafa001 124 on at

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No i am trying post po invoice but the above error is coming

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H.M.Burhan 390 Super User 2026 Season 1 on at

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Hi Imran,

Kindly share a screenshot of the Prepayment 'Apply' screen after selecting the same vendor for which you are attempting to post the PO invoice.

Cheers,

Burhan

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Imran Mustafa001 124 on at

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@H.M.Burhan thank you for response
Reason:
The error occurred because the prepayment invoice was posted, but the final invoice had not yet been posted.

Resolution:
First, I settled the prepayment invoice. After that, I proceeded with posting the final invoice, which was successfully posted.

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André Arnaud de Cal... 303,461 Super User 2026 Season 1 on at

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Hi Imran,

I haven't seen this error message as part of posting a vendor invoice. I checked where in the standard application it is using the error message as shown in your screenshot. It is used with in transaction reversal. To my knowledge this is not used for posting invoices with a pre-payment, but I might be wrong. Are you aware of customizations?

Anyway, a developer can debug the scenario in a non-production environment to see when and how this error is triggered from the vendor posting process.

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