How To Fix ENHANCEMENT020 - Only types E, C and S are allowed

ENHANCEMENT020 - Overview

• Message type: E = Error

• Message class: ENHANCEMENT - SAP customer enhancement project messages

• Message number: 020

• Message text: Only types E, C and S are allowed

What causes this issue?

There are no enhancement components for the type you have entered.
At the current time, the following types are supported:
E: Function exits
C: Menu enhancements
S: Screen enhancements

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.

ENHANCEMENT020 - Details

• The SAP error message ENHANCEMENT020 indicates that there is an issue with the types of enhancements being used in your ABAP code. Specifically, this error occurs when an enhancement is defined with an invalid type. The valid types for enhancements in SAP are:
  
  E: Exit
  C: Customer exit
  S: SAP enhancement
  
  Cause
  The error typically arises when:
  
  An enhancement is defined with a type that is not one of the allowed types (E, C, S).
  There is a mismatch in the enhancement implementation or definition.
  The enhancement framework is being used incorrectly, such as trying to use a type that is not supported.
  
  Solution
  To resolve the ENHANCEMENT020 error, you can follow these steps:
  
  
  Check Enhancement Definition: Review the enhancement definition in your ABAP code. Ensure that the enhancement type is correctly specified as E, C, or S.
  
  
  Correct the Type: If you find that the enhancement type is incorrectly defined, change it to one of the valid types (E, C, or