Material & not maintained in plant &

What causes this issue?

No material master data exists for material &V1& in plant &V2&. This
may be for one of the following reasons:
You have not yet created any data for the material at this plant level.
In this case, create the plant data by maintaining material master
record &V1& from the Purchasing, MRP, or Storage view.
The material is a planned material, that is, the data has been
scheduled for this plant level for a future point in time.
In this case, you can display the planned changes for the material.

How to fix this error?

INCLUDE NA_EINGABE_PRUEFEN

Error message extract from SAP system. Copyright SAP SE.