Promised Orders
You can create sales orders and material stock requests for items that require ATP-reservation processing. The order line quantity for these lines is promised to ship by a scheduled shipment date based on available-to-promise (ATP) calculations of future supply and demand. While most fields for promised order lines are subject to the same rules as other changes for sales orders and material stock requests, quantity changes are handled slightly differently.
For stock requests only, you can increase the requested quantity for an ATP-reserved order line only until the line has been promised. To increase order quantity for promised orders, enter a new order line or schedule. The requested quantity on an ATP-reserved order line can be decreased until the order is shipped. For promised sales orders that have not been associated with a pick batch ID, you can decrease the order lines.
For promised order lines from any source, you can:
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Unpromise quantities for the scheduled ship date, using the Shortage Workbench.
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Partially unpromise quantities if the Partial Qtys Can Ship setting is Yes on the Setup Fulfillment page or the Setup Item Fulfillment page.
If backorders are not allowed for an order line, partially unpromising an order line effectively decreases the order line's requested quantity.