How To Fix FI663 - You must not change assignment to company code &

FI663 - Overview

• Message type: E = Error

• Message class: FI - TR-FM Funds Management

• Message number: 663

• Message text: You must not change assignment to company code &

What causes this issue?

The Project Cash Management module is active in the company code
specified.

System Response

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

How to fix this error?

Check that you have chosen the correct company code. You may have to
deactivate Project Cash Management in this company code before making
your assignment, and activate it again afterwards.

Error message extract from SAP system. Copyright SAP SE.

FI663 - Details

• The SAP error message FI663 ("You must not change assignment to company code &") typically occurs when there is an attempt to change the assignment of a master data object (like a vendor, customer, or general ledger account) to a different company code in a way that is not allowed by the system configuration or business rules.
  
  Cause:
  
  Company Code Assignment: The object (e.g., vendor or customer) is already assigned to a specific company code, and the system does not allow changing this assignment due to configuration settings or business rules.
  Data Integrity: SAP enforces data integrity rules to ensure that financial data remains consistent and accurate across different company codes.
  Transaction Type: The transaction being performed may not support changing the company code assignment.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the company code assignment.
  
  
  Solution:
  
  Check Configuration: Review the configuration settings in the SAP system to ensure that