How To Fix FI635 - You must not change assignment to company code &

SAP Error Message - Details

• Message type: E = Error

• Message class: FI - TR-FM Funds Management

• Message number: 635

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

What causes this issue?

Cash Budget Management 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 need to
deactivate Cash Budget Management in this company code before
deactivating assignment. You must then reactivate it (Cash Budget
Management implementation guide).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FI635 - You must not change assignment to company code & ?

  The SAP error message FI635 ("You must not change assignment to company code &") typically occurs when there is an attempt to change the assignment of a financial document or transaction to a different company code in a way that is not allowed by the system. This can happen in various scenarios, such as during document posting, adjustments, or when trying to change master data.
  Cause:
  
  Document Type Restrictions: Certain document types may have restrictions that prevent changing the company code assignment.
  Cross-Company Code Transactions: The system may not allow changing the company code if the transaction involves multiple company codes.
  Configuration Settings: The configuration settings in the Financial Accounting (FI) module may restrict changes to company code assignments.
  Document Status: The document may be in a status that does not allow changes (e.g., posted, cleared).
  Authorization Issues: The user may not have the necessary authorizations to make changes to the company code assignment.
  
  Solution:
  
  Check Document Type: Verify if the document type allows changes to the company code. If not, you may need to reverse the document and re-enter it with the correct company code.
  Review Configuration: Consult with your SAP FI configuration team to review the settings related to company code assignments and document types.
  Document Status: Ensure that the document is in a status that allows changes. If it is posted, you may need to reverse it first.
  User Authorizations: Check if the user has the necessary authorizations to make changes to the company code. If not, the user may need to request additional permissions.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error message or provide additional guidance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to document posting and adjustments, such as FB01 (Post Document), FB02 (Change Document), and FB03 (Display Document).
  SAP Help Portal: Utilize the SAP Help Portal for documentation on financial accounting and error messages.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Testing in Development: If possible, replicate the issue in a development or test environment to better understand the cause and test potential solutions without affecting production data.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP support team or a consultant with expertise in SAP FI for further investigation.