Auto production order for BOM material

Dear Expert: Take an example to explain our requirement: We have a BOM structure: Material: A (Finished products). Material B and C(semi-finished products). Material: B1 and C1(Raw material). Currently, we need create Production order for A and B, C manually. We want to know if there is any setting or APP can let the Production order for material B, C generated automatically when create Production order for material A? Best Regards Kane