We have a requirement that a material having 2 alternate BOM which is used for suncontracting to send to same vendor depending on the requirement. Some times raw material directly send to vendor for sub contract or upto one level produced in in-house and send that material to vendor for subcontract. In this case, vendor is same. but, component may vary based on situation/requirement. I have created alternate BOM as well as assigned with 2 differnt production version also. In purchase info record i can able to assign any o 1 prod. version. As we all know that system wont allow to create multiple info record with same material and vendor combination. How can i select alternative BOM when i create subcontract PO with same vendor? Manually change the component in subcontract PO's BOM is the only way?