How To Fix KE401 - Foreign key relationship for field & is incorrect

KE401 - Overview

• Message type: E = Error

• Message class: KE -

• Message number: 401

• Message text: Foreign key relationship for field & is incorrect

What causes this issue?

The foreign key connection for field &V1& of Table &V2& is incorrect.
The check table &V2& and check field &V3& are entered in the field
catalog TKEF.

System Response

Transaction/program abended.

How to fix this error?

Ask your system administrator to reorganize the field catalog. This
is done using the program RKEREOFC.

Error message extract from SAP system. Copyright SAP SE.

KE401 - Details

• The SAP error message KE401 indicates that there is an issue with a foreign key relationship for a specific field in the context of controlling (CO) module transactions. This error typically arises when there is a mismatch or inconsistency in the data that violates the foreign key constraints defined in the system.
  Cause of KE401 Error
  
  
  Data Inconsistency: The most common cause is that the data being entered does not match the expected values in the related tables. For example, if you are trying to post a cost center that does not exist in the master data, this error will occur.
  
  
  Missing Master Data: The required master data (like cost centers, internal orders, etc.) may not be created or may have been deleted.
  
  
  Incorrect Configuration: There may be issues with the configuration of the controlling area or the related settings in the SAP system.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations