# Oracle EBS MRP Exception Messages Reference > Source: https://netray.co/tools/oracle-ebs-mrp-exception-messages-reference > Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems. > Section: Free Tools ## Short answer What each Oracle MRP exception message means, why it appears and what a planner usually does about it. ## Category oracle ## Erp Oracle E-Business Suite ## Industry Discrete Manufacturing ## Audience - Production planner - Oracle EBS consultant - Supply chain analyst ## Tool **Kind:** worksheet **Mode:** reference **Columns:** #### Exception message **Key:** message **Type:** text #### Group **Key:** group **Type:** select **Options:** - Supply - Demand - Item - Timing #### What it means **Key:** meaning **Type:** text #### Usual planner action **Key:** action **Type:** text **Rows:** **Message:** Items with a shortage **Group:** Item **Meaning:** Projected on-hand falls below zero or below safety stock. **Action:** Add supply, expedite or change demand. **Message:** Items with excess inventory **Group:** Item **Meaning:** Projected on-hand exceeds the demand and safety stock. **Action:** Cancel or defer supply, review min-max. **Message:** Items with no activity **Group:** Item **Meaning:** No demand or supply in the planning horizon. **Action:** Review for obsolescence. **Message:** Items with negative beginning on hand **Group:** Item **Meaning:** Starting on-hand is negative. **Action:** Correct the inventory balance first. **Message:** Orders to be rescheduled in **Group:** Timing **Meaning:** Supply arrives later than it is needed, so it should be pulled earlier. **Action:** Expedite the order. **Message:** Orders to be rescheduled out **Group:** Timing **Meaning:** Supply arrives earlier than needed. **Action:** Push the due date to reduce carrying cost. **Message:** Orders to be cancelled **Group:** Supply **Meaning:** Supply exists with no matching demand. **Action:** Cancel the order after review. **Message:** Orders with compression days **Group:** Timing **Meaning:** Order must be completed in less than the normal lead time. **Action:** Check capacity or move the due date. **Message:** Past due orders **Group:** Supply **Meaning:** Supply order due date is before the plan start. **Action:** Chase supplier or the shop floor. **Message:** Past due forecast **Group:** Demand **Meaning:** Forecast entries have dates in the past. **Action:** Consume or remove stale forecast. **Message:** Past due sales orders **Group:** Demand **Meaning:** Open sales orders with request dates in the past. **Action:** Confirm ship dates with customers. **Message:** Potential late order **Group:** Timing **Meaning:** Supply is planned after the need date. **Action:** Expedite, resource or renegotiate. **Message:** Repetitive schedules past due **Group:** Supply **Meaning:** Repetitive schedule dates have passed. **Action:** Update or close the schedule. **Notes:** Exact wording and the list available depend on your release and on whether you plan in MRP or ASCP. Check the Planner Workbench exception summary on your instance to confirm the names. ## Content **Intro:** After every MRP or ASCP plan run, the planner works through exception messages in the Planner Workbench. Knowing what each message means, and which are noise, is the difference between a managed plan and a flooded inbox. **Sections:** #### How to use this reference **Body:** Filter by group to focus on supply, demand, item or timing messages. Use the planner action column as a starting playbook for a new planner or as the basis for a standard operating procedure. Export to PDF if you need to put a one-page cheat sheet beside the planner desk. #### Prioritising exceptions **Body:** Not every exception deserves the same attention. Shortages and past due orders directly threaten customer delivery, so work them first. Reschedule messages are about cost and efficiency, and cancel messages release working capital, so they follow. Items with no activity are a periodic housekeeping task, not a daily one. **Bullets:** - First: shortages, past due, potential late - Second: reschedule in and compression days - Third: reschedule out and cancel - Periodic: excess inventory and no activity #### Reducing exception noise **Body:** Too many exceptions usually point to master data and parameters, not to bad planning. Check lead times, safety stock, planning time fences, reschedule tolerance and the plan options that control which messages appear. Fixing a single wrong lead time on a high-volume item can remove hundreds of reschedule messages. #### Common mistakes **Body:** Planners often release or reschedule from the workbench without checking supplier or shop capacity, which then creates fresh past due orders. Another mistake is ignoring negative beginning on hand messages, which silently distort every projected quantity for the item. Fix balances before trusting the plan. **Cta:** If your planners spend hours triaging exceptions, we can build a read-only agent over your EBS planning data that ranks them by customer impact. **Faq:** #### Where do I see MRP exceptions in Oracle EBS? **Answer:** Use the Planner Workbench, where exceptions are summarised by type and drill down to the items and orders. The underlying data is stored in the MRP tables for the plan you ran. #### What does Reschedule In mean? **Answer:** It means the supply order currently arrives after the date it is needed, so it should be moved earlier. It is the planner's signal to expedite the order. #### Why do I get Orders to be cancelled? **Answer:** The plan found supply with no demand to consume it. This often follows a demand drop, a forecast change, or an order that was already covered by other supply. #### Are the exception names the same in ASCP? **Answer:** Most are similar, but ASCP adds exceptions that relate to resource and material constraints. Confirm the list in your own Planner Workbench. ## Search terms oracle mrp exception messages, oracle planner workbench exceptions, reschedule in reschedule out oracle, items with excess inventory oracle mrp, orders to be cancelled mrp, orders with compression days, oracle ascp exception messages --- Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json