Hello
This kind issue should not be raised to SAP as this is a consulting issue, rather than a possible bug of program error on the standard system.
Yes, it is possible to use a costing BOM for LTP.
Make sure that you have checked the following points:
1 - The BOM selection ID includes the BOM usage;
2 - The "production relevant" flag is checked for the BOM item;
BR
Caetano
