Selection conditions are ignored for projection views

What causes this issue?

Projection views are used to mask certain fields out of tables
(projection). Interfaces can be minimized in this way, i.e. only the
data actually required is transferred in a database access. Selection
conditions make no sense in this context and therefore cannot be
defined for projection views.

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?

If you want to define selection conditions, first change the
view type.

Error message extract from SAP system. Copyright SAP SE.