SIMMS' Global Settings lets you control whether invoices are shipped or you can use SIMMS' Shipping Manager when completing the invoice, wherein you can indicate what date you propose to ship the product. You can thus assure your shipping staff and your client knowing when the product should be shipped.
With SIMMS' Fulfillment Manager you can review your sales demand and quickly fill mass amounts of sales orders at once, generate purchase orders for shortages and even transfer items from alternate locations to fulfill the requirements.
SIMMS lets you generate a new invoice or invoice from entire sales order or partially issue a sales order as many times as required until the whole sales order has been issued, creating separate invoice for each partial sales order fill.
SIMMS provides you with a powerful yet easy-to-use quoting feature giving your sales team the tools they need to close the sale. You can see the cost, increase the quoted price a percent over the cost and many more options, leaving complete control in your hands.
Sales orders let you complete a sale for your customer but instead of depleting stock it reserves the stock, this enables the invoicing or shipping against the initial order fully (or partially).