How To Fix OL379 - Function module parameter & is a & parameter

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 379

• Message text: Function module parameter & is a & parameter

What causes this issue?

You have assigned a function module parameter to the method parameter.
However, there are other direction attributes to consider.

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?

You should adapt the direction of the parameters for the method as
follows:
Import parameters
Activate 'Import', deactivate 'Export', deactivate 'multiline'
Export parameters
Deactivate 'Import', activate 'Export', deactivate 'multiline'
Changing parameters
Activate 'Import' and 'Export', deactivate 'multiline'
Tables parameters
Activate 'multiline', activate or deactivate 'Import' and 'Export',
according to the direction

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OL379 - Function module parameter & is a & parameter ?

  The SAP error message OL379 typically indicates that there is an issue with the parameters being passed to a function module. The message format suggests that a parameter is either missing or incorrectly defined, which can lead to the function module not being able to execute properly.
  Cause:
  
  Incorrect Parameter Type: The parameter being passed does not match the expected data type defined in the function module.
  Missing Parameter: A required parameter is not being passed to the function module.
  Incorrect Structure: If the parameter is a structure or table, it may not be populated correctly or may not conform to the expected structure.
  Data Type Mismatch: The data type of the variable being passed does not match the expected data type in the function module.
  
  Solution:
  
  Check Function Module Documentation: Review the documentation for the function module to understand the expected parameters and their data types.
  Validate Parameter Types: Ensure that the parameters being passed to the function module match the expected types. This includes checking for correct data types (e.g., CHAR, NUMC, etc.) and lengths.
  Ensure All Required Parameters Are Passed: Make sure that all mandatory parameters are being provided when calling the function module.
  Debugging: Use the debugger to step through the code and inspect the values and types of the parameters being passed to the function module.
  Check for Changes: If the function module has been modified recently, ensure that the calling program has been updated accordingly to reflect any changes in parameter requirements.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE37 (Function Builder) to view and analyze the function module in question.
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific function module you are using.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  If you continue to face issues after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.