How To Fix 56805 - At least one optional parameter must be specified when method is called

56805 - Overview

• Message type: E = Error

• Message class: 56 - HR TRAVEL: Messages for Trip Costs Dialog

• Message number: 805

• Message text: At least one optional parameter must be specified when method is called

What causes this issue?

You tried to call a method but have only entered the mandatory
parameters. For this method there are other optional parameters
which must be specified.
These are not considered mandatory parameters since, as a rule,
only one of them requires values whereas the others can remain
initial.

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 56805 - At least one optional parameter must be specified when method is called ?

  The SAP error message 56805, which states "At least one optional parameter must be specified when method is called," typically occurs in the context of ABAP programming, particularly when dealing with method calls in classes. This error indicates that a method that has optional parameters was called without providing any of those optional parameters, which is not allowed in the specific context of the method's implementation.
  
  Cause:
  
  Method Definition: The method in question is defined with optional parameters, but the implementation requires at least one of those parameters to be provided when the method is called.
  Incorrect Call: The method is being called without any parameters, or with parameters that do not meet the requirements set in the method definition.
  Business Logic: The business logic may dictate that at least one optional parameter must be specified for the method to execute correctly.
  
  
  Solution:
  
  Check Method Definition: Review the method definition in the class to understand which