Preparation for this store already been okayed

What causes this issue?

You do not need to duplicate the preparation for this store
because no errors occurred during the preparation.
The prepared data was not passed on.

System Response

It is not possible to repeat this preparation.

How to fix this error?

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.