Phys. inventory doc. has the status 'posted'

What causes this issue?

The system cannot perform the desired function because the
<GL:physical_inventory_document>physical inventory document</> has the
status "adjustment postings made". The physical inventory document is
given this status if
the differences have already been posted,
the items are subject to recount,
the items have been deleted.

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?

INCLUDE MB_NA_MI03

Error message extract from SAP system. Copyright SAP SE.