BOM & /alt. & /usage & has no items relevant to costing

What causes this issue?

You are attempting to cost material/plant &v4&.
The BOM &v1& for this material with alternative BOM &v2& and BOM usage
&v3& has no items that are relevant to costing.

System Response

No BOM items are costed.

How to fix this error?

In the BOM, check the <LS>CostingRelevncy</> indicator for the
individual items.

Error message extract from SAP system. Copyright SAP SE.