How To Fix FDT_CORE247 - Tables &1 and &2 must either both contain an ID keyfield or both not

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CORE - Formula & Derivation Tool: Core

• Message number: 247

• Message text: Tables &1 and &2 must either both contain an ID keyfield or both not

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CORE247 - Tables &1 and &2 must either both contain an ID keyfield or both not ?

  The SAP error message FDT_CORE247 indicates that there is a mismatch in the configuration of two tables in the context of Field Data Tool (FDT) or similar data handling processes. Specifically, the error states that both tables must either contain an ID key field or both must not contain it. This is a common issue when setting up data models or configurations that involve multiple tables.
  Cause:
  The error typically arises from one of the following scenarios:
  
  Inconsistent Configuration: One of the tables has been configured to include an ID key field while the other does not. This inconsistency can lead to issues in data processing or retrieval.
  Data Model Design: The design of the data model may not have been properly aligned, leading to one table being set up differently from the other.
  Migration or Update Issues: If tables were migrated or updated, the key field settings may not have been correctly applied to both tables.
  
  Solution:
  To resolve the FDT_CORE247 error, you can follow these steps:
  
  
  Check Table Configurations:
  
  Go to the configuration settings for both tables involved in the error.
  Verify whether both tables have the ID key field defined or not.
  
  
  
  Align Key Field Settings:
  
  If one table has the ID key field and the other does not, decide on a consistent approach:
  
  Either add the ID key field to the table that is missing it.
  Or remove the ID key field from the table that has it.
  
  
  Ensure that both tables are aligned in terms of their key field settings.
  
  
  
  Test the Configuration:
  
  After making the necessary adjustments, test the configuration to ensure that the error no longer occurs.
  Perform any necessary data operations to confirm that the tables interact correctly.
  
  
  
  Documentation and Best Practices:
  
  Document the changes made to the table configurations for future reference.
  Follow best practices for data model design to avoid similar issues in the future.
  
  
  
  Related Information:
  
  Field Data Tool (FDT): This is a tool used in SAP for managing and processing data fields. Understanding how FDT works can help in troubleshooting related issues.
  SAP Notes and Documentation: Check SAP Notes for any known issues or patches related to FDT and table configurations.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  By ensuring that both tables are consistently configured regarding their ID key fields, you should be able to resolve the FDT_CORE247 error effectively.