Automatic client handling not possible

What causes this issue?

Automatic client handling is not possible if:
The annotation <NP>@CLIENTHANDLING.TYPE : #CLIENT_DEPENDENT</> sets this
view as client-dependent. However, since no client-dependent data source
is used in the view, automatic client handling is not possible.
The annotation <NP>@CLIENTHANDLING.TYPE : #CLIENT_INDEPENDENT</> sets
this view as client-independent. However, since a client-dependent data
source is used in the view, explicit setting of the view as
client-independent is not possible.

How to fix this error?

Whenever the annotation <NP>@CLIENTHANDLING.TYPE : #INHERITED</> is
used, a view is then client-dependent if at least one of the data
sources used is client-dependent.

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.