Hi Kim,

What versions of Adagio Receivables and Invoices are you using?

When I enter an invoice using Adagio Invoices 8.1A, and attempt to apply a payment with a duplicate check number already on file for the customer, I get an error that the 'check number xxx has already been posted'.

If I try to enter a cash payment in Adagio Receivables 8.1A and use the same check number as one already on file for the same customer, the payment amount gets reset to 0.00 and is not editable, effectively cancelling the payment.

There is no prevention of using a duplicate check number that exists for a different customer. This makes sense as 2 customers might happen to write you the same check number.

Are you using Adagio BankRec to enter the cash payments?

Perhaps if you use something unique to put into the 'check number' for cash, such as the date, might help prevent duplications as opposed to using something like 'cash'.