Unable to Post the Purchase Invoice from Purchase Order due to Prepayment Invoice

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Posted on by Jainam M. Kothari

15,732 Super User 2026 Season 1

Hello Experts,

I am not able to invoice the remaining inventory on this PO.

In the PO, there is 50 Qty for 146 items, and I have Invoices for the 1 Qty, and now I want to Invoice the remaining 49 Qty from the PO. I have already posted the Prepayment Invoice for 49 Qty before posting the Purchase Invoice, just like I have done for 1 qty.

At the time of Posting 1 Qty there is NO Error. But now i am unable to Post the PI.

The error is "You cannot Post the document of type order with the Number PO-******** before all related prepayment invoices are posted"

Even though i am unable to update the Prepayment % in PO Lines either manually or by configuration package.

And there is NO Customization in the Prepayment Process in our system.

Please Assist.

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Dynamics 365 Business Central

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KasparsSemjonovs 4,817 Super User 2026 Season 1 on at

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Partial invoices with prepayment can lead to many frustrations. If You know that it will be partial invoice, better to split the lines :)

But anyway - we would need a bit more details on what are the amounts, what is the prepayment percentage.

In this case the error means, that the prepayment amount is greater than there are prepayment invoices. You can check through Statistics in the prepayment section to get more clarification. It will show if 100% of prepayment has been invoiced, and what amount can be deducted.

What You need to understand is that if there is 50% prepayment, and you have 146 items, it doesn't mean that You have paid for 73 items fully, it means You have paid half for 146 items, and each time You receive item, it will generate final invoice for the remaining 50% and also deduct the 50% prepayment of this cost and post it from prepayment account to final cost account.

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OussamaSabbouh 12,803 Super User 2026 Season 1 on at

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Hello,

BC is blocking your PO invoice because a prepayment is still expected.

Can yoy check the prepayment amount not invoiced on the line?

Regards,

Oussama Sabbouh

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YUN ZHU 99,055 Super User 2026 Season 1 on at

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This is the standard prepayment control; you need to post the prepayment invoices first.

If you can't solve it, you can ask the developers to debug it.

Thanks

ZHU

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Jainam M. Kothari 15,732 Super User 2026 Season 1 on at

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Hello @KasparsSemjonovs and @OussamaSabbouh,

Yes i have checked the Statistic and all the Prepayment Amount is Invoiced.

And this is the Standard Process of BC and there is No Customization. So i have checked with my technical team also.

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Jainam M. Kothari 15,732 Super User 2026 Season 1 on at

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Thank You Experts.

We have got the solution and Posted the Purchase Invoice Successfully.

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