How To Fix 3G209 - Account assignment objects are incorrect. No substitution is possible.

3G209 - Overview

• Message type: E = Error

• Message class: 3G - Payroll: International

• Message number: 209

• Message text: Account assignment objects are incorrect. No substitution is possible.

What causes this issue?

The account assignment object check showed that, from the point of view
of CO, the specified account assignment is not valid, and cannot be
replaced by the employee's master cost center or a substitute cost
center. This item cannot be posted.

Error message extract from SAP system. Copyright SAP SE.

3G209 - Details

• The SAP error message 3G209 indicates that there is an issue with the account assignment objects in your transaction. This error typically arises when the system cannot find a valid account assignment for the transaction you are trying to process, which prevents any substitution from occurring.
  Causes:
  
  Incorrect Account Assignment: The account assignment objects (like cost centers, internal orders, or projects) may not be correctly defined or may not exist in the system.
  Missing Master Data: The required master data for the account assignment objects may be missing or not properly maintained.
  
  Configuration Issues: There may be configuration issues in the system that prevent the proper assignment of accounts.
  Authorization Issues: The user may not have the necessary authorizations to access the account assignment objects.
  Inconsistent Data: There may be inconsistencies in the data that are causing the system to reject the account assignment.
  
  Solutions:
  
  Check Account Assignment Objects: Verify that the account assignment objects you are using