Error message during BP address load thru File Upload process

Hello Experts,

When I am trying to load addresses using "File Upload" process I am getting error message saying that " Field Addr. no. of
transfer structure is unknown" .  Can you please tell me how I can resolve this issue?

Below steps were followed:

1. Execute t-code NWBC

2. Select Business Partner Governance

3. Select Change Request from Left Panel > Processing of Multiple Business Partner > File Upload

4. Select Entity Type as "Address" and then click Next

5. Select "Address Type", "Address Number" and "Business Partner ID" attributes from selection and click Next.  It throws error message: " Field Addr. no. of transfer structure is unknown"

Thanks,

Meghna