How To Fix AD337 - Specify no more than one client field in the key

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 337

• Message text: Specify no more than one client field in the key

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message AD337 - Specify no more than one client field in the key ?

  The SAP error message AD337, which states "Specify no more than one client field in the key," typically occurs when you are trying to create or modify a table or a data structure in SAP that has more than one client field defined as part of its key. In SAP, a client field is usually represented by the field "MANDT," which is used to differentiate data across different clients in a multi-client environment.
  Cause:
  The error arises when:
  
  You have defined multiple fields in the key of a table or structure that are client-specific (i.e., they include the "MANDT" field).
  The system enforces a rule that only one client field can be part of the key to ensure data integrity and proper client separation.
  
  Solution:
  To resolve this error, you should:
  
  Review the Table/Structure Definition: Check the definition of the table or structure where the error is occurring. Look for the key fields defined in the data dictionary (SE11).
  Modify the Key Fields: Ensure that only one field is defined as a client field (i.e., only one "MANDT" field). If you have multiple fields that are client-specific, you need to decide which one should remain in the key and remove the others.
  Adjust Related Data Structures: If there are related tables or structures that also reference the same key, ensure that they are consistent with your changes.
  Transport Changes: If you are working in a development environment, make sure to transport your changes to the appropriate environments (e.g., quality assurance, production) after testing.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE11 (Data Dictionary) to view and modify table definitions.
  Documentation: Refer to SAP documentation or help resources for guidelines on defining keys in database tables.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions related to this error message.
  
  By following these steps, you should be able to resolve the AD337 error and ensure that your table or structure is correctly defined in accordance with SAP's requirements.