How To Fix DDLS254 - The current expression is not allowed in function &

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 254

• Message text: The current expression is not allowed in function &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS254 - The current expression is not allowed in function & ?

  The SAP error message DDLS254, which states "The current expression is not allowed in function &," typically occurs during the execution of a Data Definition Language (DDL) statement in the ABAP Dictionary or when working with database views, tables, or other database objects. This error indicates that there is an issue with the expression or function being used in the context of the DDL operation.
  Causes:
  
  Invalid Expression: The expression used in the DDL statement may not be valid in the context of the function being executed. This could be due to syntax errors or the use of unsupported functions or operators.
  Data Type Mismatch: The data types of the fields or expressions being used may not be compatible with the operation being performed.
  Contextual Restrictions: Certain functions or expressions may not be allowed in specific contexts, such as within certain types of views or when defining certain database objects.
  Database Constraints: There may be