The new Customer No. and Bill-to Customer No. fields with table relations to the Customer table are available on the Shopify Company Location page. By default, the fields are empty. When you import a Shopify order that has a B2B company and location, the process maps the sell-to and bill-to customers in those fields.

The following table shows different examples of customer mappings.

Case	Value in the Customer No. field in the Shopify Company	Value in the Customer No. field in the Shopify Company Location	Value in the Bill-to Customer No. field in the Shopify Company Location	Proposed value for Sell-to Customer No. field in the Shopify Order	Proposed value for Bill-to Customer No. field in the Shopify Order
1	10000	blank	blank	10000	10000
2	10000	20000	blank	20000	20000 (same as Customer No. in Company Location)
3	10000	20000	30000	20000	30000
4	10000	blank	30000 Not supported. Must be blank or Sell-to must have value	10000 (same as 1)
5	blank	blank	blank	blank	blank

When you select the Add customer as Shopify Location action, you can add customers as company locations. The customer you select must not already be exported.