How To Fix EA340 - Foreign key for structure '&1', field '&2' cannot be evaluated

SAP Error Message - Details

• Message type: E = Error

• Message class: EA - IDoc Basis Messages

• Message number: 340

• Message text: Foreign key for structure '&1', field '&2' cannot be evaluated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EA340 - Foreign key for structure '&1', field '&2' cannot be evaluated ?

  The SAP error message EA340 indicates that there is an issue with a foreign key relationship in the data dictionary. Specifically, it means that the system is unable to evaluate a foreign key for a specified structure and field. This can occur for several reasons, and understanding the cause is essential for finding a solution.
  Causes of EA340 Error
  
  
  Missing Foreign Key Definition: The foreign key relationship may not be properly defined in the data dictionary for the specified structure and field.
  
  
  Inconsistent Data Types: The data types of the foreign key field and the referenced field may not match, leading to evaluation issues.
  
  
  Field Not Part of a Table: The field specified may not be part of a table that can be referenced by a foreign key.
  
  
  Transport Issues: If the data dictionary objects were transported from one system to another, there may be inconsistencies or missing objects in the target system.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the foreign key relationship.
  
  
  Solutions to EA340 Error
  
  
  Check Foreign Key Definition:
  
  Go to the Data Dictionary (transaction SE11) and check the foreign key definition for the specified structure and field.
  Ensure that the foreign key is correctly defined and points to an existing table and field.
  
  
  
  Verify Data Types:
  
  Ensure that the data types of the foreign key field and the referenced field are compatible. If they are not, you may need to adjust the data types accordingly.
  
  
  
  Check Field Existence:
  
  Verify that the field specified in the error message is indeed part of a table and is correctly defined in the data dictionary.
  
  
  
  Transport Consistency:
  
  If the issue arose after a transport, check the transport logs and ensure that all necessary objects were transported correctly. You may need to re-transport missing objects.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the foreign key relationship. You may need to consult with your security team to verify this.
  
  
  
  Rebuild the Foreign Key:
  
  If the foreign key definition is corrupted or incorrect, you may need to delete and recreate the foreign key relationship.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SE11: Data Dictionary
  SE14: Database Utility (to check and adjust database objects)
  SE37: Function Module (to check if any function modules are involved in the foreign key evaluation)
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for EA340 in the SAP Support Portal.
  
  
  Debugging: If the issue persists, consider debugging the program or transaction that is triggering the error to get more insights into the context of the error.
  
  
  By following these steps, you should be able to identify the cause of the EA340 error and implement a suitable solution.