How To Fix WG402 - Errors withour detailed information on calling FM: &1 occurred

SAP Error Message - Details

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 402

• Message text: Errors withour detailed information on calling FM: &1 occurred

What causes this issue?

Errors occurred in a function module for which there is no more
detailed information (e.g. a system error)

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

System Response

How to fix this error?

Try again.

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 WG402 - Errors withour detailed information on calling FM: &1 occurred ?

  The SAP error message:
  WG402 Errors without detailed information on calling FM: &1 occurred
  typically occurs in the context of SAP Workflow (transaction SWI1, SWIA, or related workflow processing) or when a function module (FM) is called during workflow execution and an error happens, but the system cannot provide detailed information about the error.
  
  Cause
  
  Generic error in a called function module during workflow processing: The workflow runtime calls a function module (FM) identified by &1 (the placeholder is replaced by the actual FM name at runtime), and this FM raises an error or exception.
  Lack of detailed error information: The FM does not return detailed error messages or the error is not properly propagated back to the workflow engine.
  Missing or incorrect error handling in the FM: The FM might be catching exceptions internally without re-raising them or without providing detailed messages.
  Authorization or system issues: Sometimes, the FM fails due to missing authorizations, missing data,