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Microsoft Dynamics AX (Archived)

Voucher xxx is already used as of date xxx

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Posted on by

Hello everyone ,

whenever I try to post an invoice for the PO it gives me this error:

Voucher xxx is already used as of date xxx

posting has been canceled .

where can I find it in the system?

I went to AP -> Setup - > AP Parameters - > Number sequence for Invoice Voucher. it is set to Continuous But its format is duplicated in another number squence so maybe this is the issue?

if someone can help finding the solution

thank you

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  • Suggested answer
    André Arnaud de Calavon Profile Picture
    305,173 Super User 2026 Season 1 on at

    Hi Sarahx99,

    It might be caused by another number sequence with the same settings, indeed. Usually when you use the number sequence wizard, it creates number sequences, but you need to verify and adjust them before you start using AX.

    My preference is to create number sequences manually as you then have to think about the best format per sequence.

  • Suggested answer
    Community Member Profile Picture
    on at

    Hi Sarah,

    Could you tell me whether the vouchers were created by manual or through code?

    Go to the corresponding number sequence and click Status list, delete all the records in the form. It resolves the error.

  • Community Member Profile Picture
    on at

    Hi Andre,

    I created number sequences manually but since 2 months ago I am facing this issue.

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