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Strange Posted Sale Invoice Number

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Posted on by NWard

Hello,

We have a strange posted sales invoice number in our system and can't work out how this can have happened. Does anybody have any ideas on how this could have happened? I checked the no. series and all looks good.

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Dynamics 365 Business Central

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KasparsSemjonovs 4,764 Super User 2025 Season 2 on at

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Did You import the Sales Header?
maybe during the import process something was wrong or wrong value in wrong field, and You fill in the Posting No. on the sales header with this?

Just a guess, but I cannot think of any other reasons how the number could be created as GUID.

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YUN ZHU 95,329 Super User 2025 Season 2 on at

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Hi, is it related to the following field? Posting No. on the document page.

Manual number for Posted Sales invoice and Posted Purchase invoice (Use the same number in Sales Order and Posted Sales Invoice?)

https://yzhums.com/21537/

Hope this helps.

Thanks.

ZHU

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black_s 328 on at

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Hi,

I saw an almost similar sequence when doing a preview posting. Could it be related?

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Manish Sharma 52 on at

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Any custom code written in posting routing, like commit.

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YS-03112205-0 13 on at

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Anyone found the culprit on this one?
A customer of ours encountered this as well.

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Jun Wang 8,200 Super User 2025 Season 2 on at

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seems like a system created no.

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Matteo Fiocco 260 on at

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If you have any custom extensions or integrations, they might be interfering with how invoice numbers are generated. Some customizations or external systems might inadvertently override the default behavior and cause the system to generate a GUID.

Even though you mentioned that the number series looks good, it’s worth double-checking if there was a momentary issue when the invoice was created. Business Central relies on number series for sequential numbering, and if something disrupts that, the system may generate a GUID as a fallback.

Bye

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AB-28010749-0 36 on at

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Hi, we are facing similar issue too in our system BC (V25), There is no integration process that interferes with the number series. There were also no errors logged during posting. So that seems to be a close end too. Should this be raised to Microsoft.

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Khushbu Rajvi. 20,275 Super User 2025 Season 2 on at

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If someone manually overrides the invoice number during posting, if different number series are assigned to sales orders and invoices, or due to customizations affecting numbering. It might also result from data imports or interrupted posting processes. Checking user permissions, number series setup, and recent custom changes usually helps identify the cause.

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Jainam M. Kothari 15,631 Super User 2025 Season 2 on at

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Hello,

If you're seeing a strange posted sales invoice number in Business Central despite the number series setup appearing correct, it could be due to several factors:

manual number entry (if "Manual Nos." is enabled),

multiple or overridden number series,

customizations or extensions altering the numbering logic,

To investigate, review the invoice's audit trail, check the number series history, and examine any custom code or integrations that might affect numbering.

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