How To Fix OL846 - Mandatory parameter '&' missing in method '&' of '&'

OL846 - Overview

• Message type: E = Error

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

• Message number: 846

• Message text: Mandatory parameter '&' missing in method '&' of '&'

What causes this issue?

The method is inherited from a super type or interface type. The
parameter string of this method can only be extended by optional
parameters. However, a parameter defined in the original was deleted
from the parameter string.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OL846 - Mandatory parameter '&' missing in method '&' of '&' ?

  The SAP error message OL846 indicates that a mandatory parameter is missing in a method call. This error typically occurs in the context of ABAP programming, particularly when working with function modules, methods, or classes. The message provides placeholders for the specific parameter, method, and class that are causing the issue.
  
  Cause:
  
  Missing Parameter: The most common cause of this error is that a required parameter has not been provided when calling a method or function module.
  Incorrect Method Signature: The method being called may have been defined with mandatory parameters that are not being supplied in the call.
  Changes in Method Definition: If the method's definition has changed (e.g., parameters were added or modified) and the calling code has not been updated accordingly, this error can occur.
  Dynamic Calls: If the method is being called dynamically (e.g., using CALL METHOD with a variable), it may not be passing the required parameters correctly.
  
  
  Solution:
  
  Check Method Signature: