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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / Solution for Duplicate...
Small and medium business | Business Central, N...
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Solution for Duplicate values in External Document Number in Business Central.

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Posted on by SS-22091817-0

Hello Everyone,

 

I would like to clarify if in the External Document Number field, where we capture Purchase Order (PO) numbers, can it Allow Duplicates.

Since the same PO number may be referenced across multiple transactions, it is important that this field supports duplicate entries.

If not, what are the other solutions to this problem?

Thank you for help.

 

Categories:
Dynamics 365 Business Central
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  • Suggested answer
    Valentin Castravet Profile Picture
    Valentin Castravet 28,661 Super User 2025 Season 2 on at
    Solution for Duplicate values in External Document Number in Business Central.
    The External Document No. (Vendor Invoice No.) must be unique. When you post, the system checks for duplicates and blocks an existing number. If you need to reuse it, change it slightly, for example: if the original no. is1000, you can change it to 1000., 1000v1, or 1000v2. The exact pattern is up to your business.
     

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