Ajuda p/o campo (PYHCHQNUM)

The check number is used to provide payment traceability. It is taken as a reference in the journal entry generated by the payment processing (defined at payment journal setup level).
For expenses associated with the transactions defined with 'Mandatory printing' and the print code associated with the CHE (issued checks) processing code, the check number must necessarily be entered before posting to the bank. This can be done by printing checks or check letters.