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Question

Invoice & Credit Memo Created with the Same Ref. Nbr.

  • October 2, 2026
  • 1 reply
  • 12 views

Avishka
Freshman II
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Hi, 

One of our client has a third-party integration with Salesforce which connects through our own middleware tool, which pushes Invoices from Salesforce into MYOB Acumatica and creates the corresponding Invoices.

However, despite Numbering Sequences being specified in Accounts Receivable Preferences, how was the integration able to create an Invoice and a Credit Memo with the same Ref. Nbr.?

Any idea how can this happen?
Thanks!

 

1 reply

meganfriesen37
Captain II
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I’m not as familiar with MYOB, but in standard Acumatica, I have seen this occur.  Because Invoice and Credit Memo are two different document types, it is possible to have an Invoice and Credit Memo with the same reference number.  The only time I’ve seen this occur (and this appears to be default behaviour from Acumatica) is when a user opens an invoice and uses the “reverse” or “reverse and apply” option.  Something in how the system copies the original document to create the reversing document keeps the original document number.