How To Fix SDDL_PARSER_MSG249 - Invalid comparison in the ON condition of the composition definition

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 249

• Message text: Invalid comparison in the ON condition of the composition definition

What causes this issue?

The comparison in the composition ON condition is invalid. A key field
of the projection list must be compared with a field of the composition
target.

How to fix this error?

In a composition ON condition, a key field must be compared with a field
of the composition target.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG249 - Invalid comparison in the ON condition of the composition definition ?

  The SAP error message SDDL_PARSER_MSG249 indicates that there is an invalid comparison in the ON condition of a composition definition. This typically occurs in the context of SAP's Service Data Language (SDL) or when defining relationships between entities in a data model.
  
  Cause:
  The error is usually caused by one of the following issues:
  
  
  Mismatched Data Types: The fields being compared in the ON condition may have incompatible data types. For example, comparing a string field with a numeric field.
  
  
  Incorrect Field References: The fields referenced in the ON condition may not exist or may be incorrectly specified.
  
  
  Logical Errors: There may be logical errors in the comparison, such as trying to compare fields that do not have a meaningful relationship.
  
  
  Syntax Errors: There could be syntax issues in the ON condition, such as missing operators or incorrect formatting.
  
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Data Types: Ensure that the fields being compared