How To Fix AXT_MODEL142 - Field with ID &1 is a key field in several tables

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_MODEL -

• Message number: 142

• Message text: Field with ID &1 is a key field in several tables

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_MODEL142 - Field with ID &1 is a key field in several tables ?

  The SAP error message AXT_MODEL142 indicates that a field with a specific ID is defined as a key field in multiple tables. This situation typically arises when you are trying to create or modify a data model, and the system detects that the field in question is being used as a key in more than one table, which can lead to ambiguity or conflicts in data handling.
  Cause:
  
  Field Definition: The field is defined as a key in multiple database tables, which can create confusion in data retrieval and integrity.
  Data Model Configuration: When configuring a data model, if the same field is used as a key in different contexts, it can lead to this error.
  Inconsistent Data Model: The data model may not be designed correctly, leading to overlapping key definitions.
  
  Solution:
  
  Review Data Model: Check the data model configuration to ensure that the field is not being used as a key in multiple tables unnecessarily. If it is, consider whether it can be removed from one of the tables.
  Modify Key Fields: If the field must remain a key in multiple tables, you may need to redefine the key fields in one or more of the tables to avoid conflicts.
  Consult Documentation: Refer to SAP documentation or guidelines on data modeling to ensure that you are following best practices for defining key fields.
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a critical issue affecting your operations.
  
  Related Information:
  
  Data Model Best Practices: Familiarize yourself with best practices for data modeling in SAP to avoid similar issues in the future.
  Key Field Definition: Understand the implications of defining key fields in database tables, including how they affect data integrity and retrieval.
  SAP Community: Engage with the SAP community forums or user groups to see if others have encountered similar issues and how they resolved them.
  
  By addressing the root cause of the error and ensuring that your data model is correctly configured, you can resolve the AXT_MODEL142 error and prevent it from occurring in the future.