When trying to add an invoice through the Sales Transaction Entry, if I type a specific document number I get the error message "The Document Number is not accessible". This is not the same as "This document number already exists. Please enter a new document number." Which is what I get when I try to add a an invoice with a document number that already exists.
Does anyone have any idea what that first error message means?
I also have tried looking up that document number through 'Transaction by document' but it does not find it. Searching for the document number returns no results.
For what it is worth, I can see an entry in the following tables for the given document number that is giving the "The Document Number is not accessible" error:
SOP10100
SOP10200
SOP10106
SOP10105
SOP10102
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