How To Fix SDDL_PARSER_MSG223 - The parent entity "&1" requires a unique key

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 223

• Message text: The parent entity "&1" requires a unique key

What causes this issue?

Parent entities of compositions must have a unique key.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Use the keyword KEY in the element list to define a unique key.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG223 - The parent entity "&1" requires a unique key ?

  The SAP error message SDDL_PARSER_MSG223 indicates that there is an issue with the uniqueness of a key for a parent entity in the context of the SAP Data Dictionary or a similar data structure. This error typically arises when you are trying to create or modify a data structure (like a table or a view) that requires a unique key for its parent entity, but the key provided does not meet the uniqueness requirement.
  Cause:
  
  Duplicate Key Values: The most common cause of this error is that the key values being used for the parent entity are not unique. This can happen if you are trying to insert or update records that have the same key values as existing records.
  Incorrect Configuration: There may be a misconfiguration in the data model where the parent entity is expected to have a unique key, but the definition does not enforce this correctly.
  Data Integrity Issues: If the underlying data has integrity issues, such as duplicate entries in the database, this can lead to this error when trying to enforce uniqueness.
  
  Solution:
  
  Check for Duplicates: Review the data being inserted or updated to ensure that there are no duplicate key values for the parent entity. You can run a query to check for duplicates in the relevant table.
  Define Unique Keys: Ensure that the parent entity is defined with a unique key in the data model. If necessary, modify the data structure to enforce uniqueness.
  Data Cleanup: If there are existing duplicates in the database, you may need to clean up the data by removing or merging duplicate records to ensure that all key values are unique.
  Review Data Model: If you are working with a custom data model, review the definitions and relationships to ensure that they are set up correctly to enforce uniqueness where required.
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal or relevant SAP documentation for detailed information on data modeling and key constraints.
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary) to check the definitions of tables and views, and SE14 (Database Utility) to manage database objects.
  Debugging: If the error persists, consider using debugging tools in SAP to trace the exact point of failure and gather more context about the error.
  
  By addressing the uniqueness requirement for the parent entity and ensuring that the data adheres to the defined constraints, you should be able to resolve the SDDL_PARSER_MSG223 error.