Hi @Elaineebi ,

In IFS, several actions on order lines can cause a date (such as delivery date, due date, or need date) to change automatically. These changes are often triggered by modifications to the order line or external factors, like MRP runs or supplier interactions. Here are the most common functions that can cause such date changes on order lines:

Common Functions That Cause Date Changes on Order Lines:

1. Quantity Changes - When the quantity on a purchase order line, sales order line, or customer order line is modified, the system may recalculate dates like the delivery date or need date, especially if the system has configured lead times or availability checks.
2. Lead Time Adjustments - When the lead time (either for the supplier, manufacturing, or shipping) changes, the dates on the order line are recalculated accordingly. This can happen automatically if the lead time is updated in the supplier master data or product master.
3. Rescheduling Actions (MRP and Supply Chain Planning) - When running Material Requirements Planning (MRP) or other planning tools in IFS, the system may automatically adjust the planned dates (e.g., need date, delivery date) on order lines to ensure the availability of parts and materials. MRP will reschedule based on factors like changes in demand, inventory levels, or production schedules.
4. Status Changes - Some status changes, such as moving an order from Planned to Released, can also trigger date recalculations based on current lead times, availability, or constraints in the system.
5. Changes in Supply Chain Parameters - Modifying parameters related to supplier performance (e.g., updated delivery lead times or reliability) or internal production schedules can automatically adjust the dates on order lines. For example, updating a supplier's confirmed delivery date can adjust the order line's expected delivery date.
6. Changes in Customer or Supplier Confirmation - If a customer or supplier sends an updated confirmation (e.g., a change in expected delivery date from a supplier), the system may adjust the dates on order lines to reflect the latest confirmed delivery or due date.
7. Availability Checks - If availability checks are enabled, modifying the order line (such as quantity or the warehouse location) can trigger a recalculation of the order line date based on product availability in the inventory. This is common for sales orders, where the earliest available delivery date is recalculated based on stock levels and procurement schedules.
8. Manual Date Changes - If users manually adjust the delivery date or other related dates, it may automatically recalculate dates on other related fields (e.g., the need date or the planned date).
9. Supplier Schedule Changes - When a supplier confirms or reschedules the delivery date via Supplier Schedule or Supplier Portal, the dates on the purchase order lines will update accordingly.
10. Interventions via Purchase or Sales Order Change Management - If a change order is processed through the change management function (e.g., changing quantities or dates on the entire purchase or sales order), all order lines might be adjusted accordingly.

If your users are looking for official documentation that specifies which actions cause date changes, there might not be a specific document that outlines all these details in a single location within IFS documentation.

However, you can review the IFS Application Online Documentation (IFS Help) or contact your IFS support team for more detailed information.

I'm happy to share my advice on this. If you found the answer helpful, please mark it as the correct answer. This will allow us to close the thread and make it easier for other community users to find and benefit from in the future.

Best regards,

Thakshila