To activate QM, the inspection stock for the material must be empty

What causes this issue?

Previously, the <ZH>Quality Management</> (QM) application component
was not active. However, you now want to activate QM. Since inspection
stock exists for the chosen material in the plant, you cannot activate
QM without further action.

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?

You must manually post the material from inspection stock <ZH>or</>
Activate the inspection type using the transaction "Mass change of
inspection setup data in materials".
Set the indicator "Activation despite inspection stock" on the initial
screen.

Error message extract from SAP system. Copyright SAP SE.