How To Fix ARS_CLASSIF_COMMON000 - API Release contract &1 must only be changed via ADT (ABAP in Eclipse)

ARS_CLASSIF_COMMON000 - Overview

• Message type: E = Error

• Message class: ARS_CLASSIF_COMMON - Messages for API Release Classifications

• Message number: 000

• Message text: API Release contract &1 must only be changed via ADT (ABAP in Eclipse)

What causes this issue?

You tried to change the API release state of an object using the
obsolete transaction SCLAS_API_Cx (x=0,1,2)

System Response

You are not allowed to use the transaction for changing the API release
state.

How to fix this error?

Use ABAP development tools (ADT) to change the release state. Ensure
that you have a recent version.

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.