Transfer costumer fields via eSOA - PR x SC and PO SRM x ECC

Hi experts,

I need to transfer the RC to SC some costumer fields via ESOA interface.

I activate some BADI in ECC?

What should be done in PI?

I activate some BADI in SRM to receive this field?

Still having the same problem, also need to send a costumer field of PO SRM to PO ECC via ESOA.

I have the same questions.

I activate some BADI in SRM?

What should be done in PI?

I activate some BADI in ECCpara receive this field?

Can someone help me?

Kind Regards,

Dhan