All values in accordance with template & are allowed for characteristic &

What causes this issue?

No target interval in the material is maintained for characteristic
&V1&.
All entries that correspond with template &V2& defined in the
characteristic are allowed as planned values.

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?

Error message extract from SAP system. Copyright SAP SE.