Companies in Manage are mapped to Customers in Dynamics SL. The “Account” field on the Manage Finance > Company Finance screen needs to match the “Customer ID” field on the Financial > Accounts Receivable > Maintenance > Customer Maintenance screen in Dynamics SL. Note: If a Customer in Manage has an invoice to be imported into Dynamics SL and the customer does not exist in Dynamics SL, a new Customer will be created in Dynamics SL automatically. The integration will assume the default Class ID value established in Dynamics SL.