An inspection of material samples is not planned in this inspection plan

What causes this issue?

There is no inspection point that allows for the inspection of
samples assigned to the selected inspection plan.

System Response

For a stability test, you can only assign an inspection plan that
allows an inspection of material samples.

How to fix this error?

Maintain an inspection point in your selected inspection plan that
allows the inspection of samples, or select a different
inspection plan that fulfills this condition.

Procedure for System Administrators

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.