We need to set up some basic instructions to set up the Invoice as a payment method in suite commerce advanced.
1. Navigate to Setup > SuiteCommerce Advanced > Setup Website
2. In the Shopping tab > Set Allow Non-Credit Card Payment Methods during Checkout = T
3. Set Sales Order Type = Per Customer Basis
4. Set a Cash Sale and Invoice Form. This must be either the default Standard Sales Order – Cash Sale and Standard Sales Order – Invoice or its customized version.
5. For existing Shoppers with a Customer record, set a Term in the customer record> financial tab
6. For newly registered Customers, set a preferred term in Setup > Accounting > Accounting Lists > Filter > Type: Term