At times, the rates of items in the Sales Invoice may vary from those specified in the Sales Order. To accommodate this configuration in BizCentric, you can follow these steps:

1. Navigate to Selling Settings and ensure that the “Maintain Same Rate Throughout Sales Cycle” checkbox is unchecked. This adjustment permits the use of different rates for the same items across various Sales transactions (such as Sales Order, Delivery Note, Sales Invoice, etc.).
2. Proceed to Accounts Settings and establish the Over Billing Allowance (%).

By configuring the above two settings, you gain the flexibility to modify the rates of items in a Sales Transaction.