You need to configure sales for the cash and carry desk.

The scenario describes cash and carry sales, where customers pay immediately at the desk and sales invoices must be posted as paid in full at the time of sale. In Dynamics 365 Business Central, this is achieved by setting Payment Terms that indicate no delay between invoice date and due date.

Why D (Payment Terms = 0D)

The Payment Terms setup in Business Central allows you to define how the Due Date is calculated.

For cash and carry transactions, the invoice is due on the same day (zero days). Setting the Due Date Calculation to 0D ensures that the system always marks invoices as immediately due, reflecting the cash-and-carry business process.

This aligns with requirements: “Invoices must be posted at the cash and carry desk at the time of sale” and “Invoices already paid in full should not appear as outstanding on aging reports.”

Why not A (Payment Service)

Payment Services are used for integration with external services like PayPal or credit card gateways. Wide World Importers does not require a POS or online payment gateway—just simple cash handling at the desk.

Why not B (Direct Debit Mandate)

Direct Debit is used for recurring bank withdrawals (SEPA mandates, subscription-type payments). It does not apply to one-time, immediate cash payments.

Why not C (Payment Method = Bank Account)

While Payment Methods (e.g., Cash, Bank Transfer, Check) are also important for tracking how customers pay, the critical requirement in the scenario is ensuring the invoice is due immediately. That is achieved by Payment Terms = 0D, not by Payment Method alone.

Best Practice Setup in Business Central for Cash & Carry:

Payment Terms: 0D (ensures invoice due immediately).

Payment Method: Cash (ensures posted directly against the cash account).

Apply to invoices at posting: Invoices will automatically be shown as paid in full.

This combination ensures correct cash sales processing and eliminates the issue noted in the case study where invoices incorrectly appear in aging reports.

Microsoft References

Set Up Payment Terms in Business Central

Set Up Payment Methods in Business Central

Work with Payment Transactions