View &1 has no customizing delivery class

What causes this issue?

The delivery class '&V2&' of view &V1& is not a customizing delivery
class.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Tables/views which are to be used in BC Sets, must have one of the
following delivery classes (in transaction SE11):
'C': Customizing table, only maintained by customers, not an SAP import
'G': Customizing table, protected against SAP UPD, only INS allowed
'E': Control table, SAP and customers haven their own key areas
SPACE: is also accepted as customizing delivery class
Nom-customizing delivery classes are:
'A': Application table (master and transaction data)
'L': Temporary data table, is delivered empty
'S': System table, only maintained by SAP, change = modification
'W': System table, contents transportable in user TR objects

System Response

The use of the table/view &V1& in BC-Sets is <ZK>theoretically</> not
possible, but a previous, inadequate, delivery class check for views put
all maintenence views in BC Sets, regardless of their delivery class.
For this reason, an invalid delivery class still does not cause views to
be forbidden in BC Sets.

How to fix this error?

Change the delivery class of the table/view, because there is no
guarantee that the view delivery class check will not be activated in
future releases. The use of the view in BC Sets would then be forbidden.
You can contact the SAP developer responsible.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.