Check the default alternative BOM

What causes this issue?

You have done one of the following:
Entered an <DS:GLOS.alternative_BOM>alternative bill of material</>
(BOM) without specifying the <DS:GLOS.BOM_usage>BOM usage</>
Specified a BOM usage without entering the alternative BOM

System Response

The system has proposed the missing entry.

How to fix this error?

Check the entry proposed by the system.

Error message extract from SAP system. Copyright SAP SE.