Fixed value append can only be created for an active domain

What causes this issue?

You tried to create a fixed-value append for a domain that is not yet
active.

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?

Fixed-value appends can only be created for active domains. Activate
your domain first and then create the fixed-value append.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.