There is no specification for this material

What causes this issue?

The inspection setup for this material in the quality management view
of the material master defines an inspection with material
specification and task list. In this case, you have assigned a task
list, but no material specifications are available.

System Response

Sample calculation and inspection lot release are not possible without
a material specification.

How to fix this error?

Assign a material specification retrospectively.

Error message extract from SAP system. Copyright SAP SE.