Which Sales Order type is not typically used for Progress Billing?

The correct choice indicates that a Standard SO - Cash Sale is not typically used for Progress Billing. In a Progress Billing scenario, businesses bill clients in stages based on the completion of certain milestones or phases of a project. This billing method is generally used in long-term contracts or projects where the services or products are delivered over an extended time.

A standard cash sale is a transactional type where payment is received upfront in full at the point of sale. This does not align with the concept of Progress Billing, which involves partial payments that correspond to progress made on the project rather than immediate, complete payment in cash upon order.

The other options—Standard SO - Invoice, Standard SO - Progress Billing, and Standard SO - Open Invoice—are more fitting for scenarios where progress billing would apply. Standard SO - Invoice can be used to recognize revenue at different stages as required, Standard SO - Progress Billing is specifically designed for this purpose, and Standard SO - Open Invoice relates to billing scenarios where invoices can remain open for partial payments. Therefore, the distinction lies in how each sales order type aligns with billing practices appropriate for projects without requiring full upfront payment.