Characteristic no longer exists; see long text

What causes this issue?

When a characteristic is deleted, the characteristic values and
characteristic value groups remain in the database.

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?

If you want to completely delete the characteristic values of this
characteristic, press the appropriate button in characteristic value
processing. Any existing characteristic value groups will be retained.
If you want to completely delete the characteristic values and the
characteristic value groups, start deletion program RWRF_CHARVAL_REORG.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.