This option is available when you create a transaction (for example, a quote or an invoice), enter a customer ID that does not exist in the database, and then select Save. The Invalid ID window will appear. Select the Fast Add button to have Sage 50 automatically create a new record for the ID. Later, you can go to the Maintain Customers/Prospects window and complete the record information for this new record. Tell me more about fast-adding a new customer record.