SAP Message UAS087 - &1 data may get lost - read the long text

Diagnosis
You are about to delete all data of data basis &v2&: objects, nodes,links, and table entries. You will not be able to restore this data!
This function is intended for the initialization of test data in testsystems. Never use this function in a live system unless you areabsolutely sure that no damage incurred.

Procedure
Make sure that you really no longer need the data before continuing.