Component &1 for subcontracting does not exist in material document &2

What causes this issue?

The component does not exist for subcontracting.

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?

Check the items in the material document. If the material document does
not contain the component, you have to post it separately, or reverse
the material document and post it again with the component.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.