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Note: The planning process only suggests implementing engineering change orders when the start date of the planned order is later than the effective date. Oracle Master Scheduling/MRP and Supply Chain Planning does not suggest a planned order using an ECO if the planned order needs to start before the effective date of the ECO.

For a pending ECO, you can specify whether to include the engineering changes during the planning process. Set the MRP Active Flag to Yes in the Engineering Change Order window if you want the planning process to consider the engineering changes on the ECO.

Oracle Master Scheduling/MRP and Supply Chain Planning considers engineering changes when generating component requirements for planned orders and suggested repetitive schedules. The quantity specified by an engineering change order is considered if the scheduled effective date of the ECO is before the suggested start date of the order. For example, if you have defined the following bill of material:

Assembly A has a lead time of 2 days. Component B has a usage of 2. You defined an engineering change order that changes the usage of B to 3. The ECO has a scheduled effective date of Day 4. If the material plan for Assembly A is:

	Day 2	Day 3	Day 4	Day 5	Day 6	Day 7
Gross Requirements	0	0	100	100	100	100
Planned Orders	0	0	100	100	100	100
Table 1 - 43. Material Plan for Assembly A (Page 1 of 1)

The planned orders for Assembly A with due dates of Day 4 and Day 5 have start days of Day 2 and Day 3 respectively when offset by the lead time of 2 days. Since neither planned order has a start date that is on or after the scheduled effective date of the engineering change order, the component requirements are generated based on the current bill of material that specifies a usage of 2 Bs.

The planned orders for Assembly A with due dates of Day 6 and Day 7 have start dates of Day 4 and Day 5 respectively when offset by the lead time of 2 days. Since both planned orders have a start date that is on or after the scheduled effective date of the engineering change order, the component requirements are generated based on the revised usage of 3 Bs.

The material plan for component B is:

	Day 2	Day 3	Day 4	Day 5	Day 6	Day 7
Gross Requirements	200	200	300	300	0	0
Planned Orders	200	200	300	300	0	0
Table 1 - 44. Material Plan for Component B (Page 1 of 1)

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