How To Fix STC_CONT_CFG_ENTITY200 - Parameter &1 has key flag so it also should have direction INOUT.

STC_CONT_CFG_ENTITY200 - Overview

• Message type: E = Error

• Message class: STC_CONT_CFG_ENTITY - Technical Configuration Entity Messages

• Message number: 200

• Message text: Parameter &1 has key flag so it also should have direction INOUT.

What causes this issue?

A key parameter is used to select a config entity as input when
executing an operation on an entity. And it is used to describe the
result of an operation.
So it should have the direction INOUT, i.e. Runtime <-> Entity a.k.a.
Changing

System Response

The parameter definition maintenance raises an error.

How to fix this error?

Check the definition. Either change the direction setting or remove the
key flag.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

STC_CONT_CFG_ENTITY200 - Details

• The SAP error message STC_CONT_CFG_ENTITY200 indicates that there is a configuration issue related to a parameter in a process or function module that is expected to have a specific direction (INOUT) due to its key flag status. This typically occurs in the context of SAP's process integration or when configuring certain types of workflows or background jobs.
  
  Cause:
  The error arises when a parameter that is marked as a key (i.e., it is essential for identifying a unique record or entity) is not set up correctly in terms of its direction. In SAP, parameters can have different directions:
  
  IN: The parameter is input only.
  OUT: The parameter is output only.
  INOUT: The parameter can be used for both input and output.
  
  If a parameter is marked as a key, it is expected to be able to both receive a value (input) and return a value (output), hence it should be defined as INOUT. If it is