How To Fix OL304 - ABAP type '&' is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: OL - Workflow object types: Run-time system

• Message number: 304

• Message text: ABAP type '&' is not defined

What causes this issue?

Internal program error:
The function module 'SWC_CONT_EDIT_DEF' was called by another component
incorrectly parameterized.

How to fix this error?

Please report this error to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OL304 - ABAP type '&' is not defined ?

  The SAP error message OL304, which states "ABAP type '&' is not defined," typically occurs when the ABAP program or function module is trying to reference a data type that has not been defined or is not recognized in the current context. This can happen for several reasons, including:
  Causes:
  
  Typographical Error: There may be a typo in the type name being referenced.
  Missing Type Definition: The type may not have been defined in the program or included from another program or include file.
  Scope Issues: The type might be defined in a different scope (e.g., within a class or function module) and is not accessible in the current context.
  Inconsistent Naming: The type might have been renamed or deleted in the ABAP Dictionary.
  Namespace Issues: If you are using a custom type, it may not be in the correct namespace or may not be activated.
  
  Solutions:
  
  Check for Typos: Review the code for any spelling mistakes in the type name.
  Define the Type: If the type is missing, you need to define it. This can be done using the ABAP Dictionary (SE11) or directly in the ABAP program using TYPES statement.
  Include Necessary Includes: If the type is defined in an include or another program, ensure that the include is properly included in your program.
  Check Scope: If the type is defined within a class or function module, ensure that you are referencing it correctly, using the appropriate class or module name.
  Activate Objects: If you have recently created or modified the type, ensure that it is activated in the ABAP Dictionary.
  Namespace Check: Ensure that the type is in the correct namespace and is accessible from your program.
  
  Related Information:
  
  ABAP Dictionary (SE11): Use this transaction to check the definitions of data types, tables, and structures.
  ABAP Editor (SE38): Use this transaction to edit and test your ABAP programs.
  Documentation: Refer to SAP Help documentation for more details on data types and their usage in ABAP.
  Debugging: Use the debugger to trace where the error occurs and check the context in which the type is being used.
  
  By following these steps, you should be able to identify and resolve the cause of the OL304 error in your ABAP program.