Hello,

Can someone please tell me how to do a credit note for 'manual check invoices"

Sane way you would create any credit note, use an invoice batch.

You can add a credit note directly from a sales invoice to credit some or all of that invoice, and print or email it to your customer.

Sona:

The original question was about an Adagio Payables 'manual check (cheque) cash invoice'. Your answer pertains to a sales invoice, Adagio Invoices and Adagio Order Entry.