No BOM found for material & plant & lot size &

What causes this issue?

There is no BOM for material &V1& plant &V2& which agrees with costing
lot size &V3&.

How to fix this error?

You can either:
enter a new costing lot size
or
maintain an alternative BOM which agrees with the costing lot size, and
cost again.

Error message extract from SAP system. Copyright SAP SE.