I have imported billing address from address template file.
However, these address are not showing in the Sales Order creation.
But, if I create a new address from the UX, it works.
Please advice whether I missed anything else to upload.
What do you mean by address template file? Are you talking about the data import tool?
@johnskywalker, Yes, template means Data Import Tools File.
Anyway, this has been resolved. Somehow data in “Customer Name” column was missing and that led missing link between Customer and Address.