Sales Order replication with external number range in ECC

Hi Experts,

Business Scenario:

Step1: Sales Order gets created in Cloud for Customer.

Step2: Pricing is done real-time from SAP ECC.

Step3: On Submit replication to ECC happens.

Question: Can the sales order in C4C created with number 9000000000 be replicated with same ID in ECC?

               Does SAP supports this? (the function module throws errors which suggest otherwise)

Assumption: Internal number range for sales order in C4C is matching External number range in ECC for the order type OR.

If someone has already achieved this scenario would appreciate if they can let us know what is expected at Idoc level to get this in ECC without errors.

Thanks,

Narottam