Hi, in the standard feature of BC, customer and vendor can be the same number, but need to be created twice.


Although it is not an essential solution to the problem, you can do small customization and automatically create a vendor while creating a customer. Of course, different settings also need to be set separately, such as posting groups.
In addition, I think you can also use the same dimension value to manage these customers and vendors.
Hope this will help.
Thanks.
ZHU