apply_cm_m Guide Last updated Save as PDF Applies credit memo line credits to invoice gross line amounts. API Specification: apply_cm_m Required Fields: <client_no> <auth_key> <acct_no> or <client_acct_id> <credit_application_details> (array) <cm_no> <cm_line_no> or <cm_transaction_id> <apply_to_invoice_no> <apply_to_invoice_line_no> or <apply_to_invoice_line_tran_id> <gross_line_application_amt>