S,
Your English is OK. It is much better than my command of any other language, since I only speak English, and I am envious of people like you, who have worked to master more than one language.
Planned orders for components are published to ECC in exactly the same way as they are published for the parent materials.
So, for the components, you need to have a valid production version in ECC, and this should be CIFd to SCM as a PPM or PDS. Your SNP planned order in APO for the components should look similar to the planned orders for the parent materials (have both a receipt element and a requirements element). The Product Masters of the components of the BOM for the B material should also exist in SCM.
Best Regards,
DB49