Do not assign any include indiators

What causes this issue?

You tried to assign an inclusion indicator for this item type.
This is not allowed. However, particular item types can generally be
excluded, but cannot generally be included for one or more declaration
types.
The assigned exclusion / inclusion indicator has the following
attributes:

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

&V1&
&V2&
&V3&
&V4&

System Response

The system does not allow this entry.

How to fix this error?

Correct your entry as necessary.

Error message extract from SAP system. Copyright SAP SE.