Opening Screen
Each MRP run is identified with a session number. The opening screen displays the current session number, the date and time the session was initiated, and the number of days since the last MRP session was fully completed.
To initiate a new MRP session, click the Generate button. To continue an existing session that was paused, click the Continue button. To stop a session in progress and start a new session from scratch, click the Regenerate button.
MRP generation is a multi-level process in which items are assessed and processed in this order:
•Level 0 – CTO Items
•Level 0 – Sell Items
•Level 1+ - Sub Items
•Final Level – P Items
Level 0 – CTO Items
MRP generation begins by assessing your CTO (custom to order) items, which are customized for each customer order. CTO items are level ‘0’ sell items that are never used as subassemblies in other jobs. Planned jobs for CTO items are generated directly from sales order lines in the exact quantity ordered.
Level 0 – Sell Items
After planned jobs for CTO items are converted, MRP assesses your “Sell” items, which are standard (non-customized) items that are for sale to customers. Sell items are level ‘0’ items because they are never used as subassemblies in other jobs. Planned jobs for sell items are generated whenever net demand falls below the item’s Reorder Point within its planning period.
Level 1+ - Sub Items
After planned jobs for sell items are converted, MRP assesses your “Sub” (subassembly) items, one level at a time. Each subassembly item is assigned to the lowest level it occupies among all the product structures where it is used as a BOM component. Planned jobs for subassembly items are generated whenever net demand falls below the item’s Reorder Point within its planning period.
Final Level – P items
After all subassembly levels are processed, MRP assesses your purchased items. Planned POs are generated whenever net demand falls below the item’s Reorder Point within its planning period.
