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This page displays the outstanding report for some of your customers, meaning the amount of money you are allowing them to buy your products before they have to actually pay you.
When the B2B mode is enabled, three fields are added to the customer creation form:
Enabling the Outstanding feature
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Once a customer with outstanding allowance buys from your shop, it appears in the Customers > Outstanding page. This enables you to get an overview of your current outstanding invoices.