How To Fix 1J645 - Due date &1 falls on a non-working day

1J645 - Overview

• Message type: E = Error

• Message class: 1J - BCA: Payment Order Dialog

• Message number: 645

• Message text: Due date &1 falls on a non-working day

What causes this issue?

In the standard system, this is an information message only.

System Response

If you have changed this message to an error message in Customizing, the
system cannot create the SEPA direct debit order.

How to fix this error?

If required, you can change the message type by making an entry in
Customizing for <ZK>Bank Customer Accounts (IS-B-BCA). </>Choose
<LS>Tools -> <DS:SIMG.BCA_V_T100C>Change Message Control</></>.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 1J645 - Due date &1 falls on a non-working day ?

  The SAP error message 1J645 indicates that a due date falls on a non-working day. This typically occurs in scenarios involving payment processing, scheduling, or any other date-sensitive transactions where the system checks against the defined working calendar.
  
  Cause:
  The error arises when:
  
  The due date calculated for a transaction (like an invoice, payment, or delivery) lands on a day that is not defined as a working day in the system's calendar settings.
  The working calendar may not include weekends, holidays, or other non-working days, leading to this conflict.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Working Calendar:
  
  Go to the transaction code SCAL (or use the relevant path in your SAP system) to check the working calendar settings.
  Ensure that the calendar is correctly configured to reflect the actual working days and holidays for your organization.
  
  
  
  Adjust the Due Date:
  
  If the due date is calculated automatically, you may need to adjust the parameters