&1 summarization versions could not be deleted.

What causes this issue?

You tried to delete &V1& summarization versions. The system determined
that there is still data in the summarization database for these
summarization versions.

System Response

The &V1& summarization versions are not deleted.

How to fix this error?

If you really want to delete these summarization versions, you must
first delete all data (transaction data and hierarchy information)
belonging to these summarization versions from the summarization
database.

Error message extract from SAP system. Copyright SAP SE.