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SAP ERP MRP Planning

MRP Type

“V1”

Manual reorder point

with External Requirement

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600

500

400

300

200

100

700

800

Fixed Lot Size 800

Safety Stock 200

1

2

3

4

5

6

7

8

900

1000

ROP 600

Replenishment Lead Time 6 days

MRP Type “V1” is similar to MRP Type “VB” and shares most of the similar characteristics except External Requirement Considerations.

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See MRP Type “V1” here

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ROP with External Requirements

Customer Requirements
Manual Reservations

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Replenishment Lead Time for External Procurement

The system determines the replenishment lead time for a material procured externally by totalling number of days for the processing time for purchasing, the planned delivery time and the goods receipt processing time.

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Scenario

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ROP = 800

Replenishment Lead Time for External Procurement

The system determines the replenishment lead time for a material procured externally by totalling number of days for the processing time for purchasing, the planned delivery time and the goods receipt processing time.

Purchase Processing time + Planned Delivery Time +

GR Processing Time

= 1 + 5 + 1

= 7 days

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Replenishment Lead Time for External Procurement

The system determines the replenishment lead time for a material procured externally by totalling number of days for the processing time for purchasing, the planned delivery time and the goods receipt processing time.

Purchase Processing time + Planned Delivery Time +

GR Processing Time

= 1 + 5 + 1

= 7 days

Which means any Customer Requirement or Manual Reservations beyond 7 days are NOT considered.

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Firstly, we shall remove safety stock !!!

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Manual Reservation created

Below ReOrder level

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MRP run

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Nothing Planned

Today is 14.09.2016

22.09.2016 is 8 days from today

(beyond 7 days Replenishment Lead Time)

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Today is 14.09.2016, Reservation is changed to 16.09.2016 (within the 7 days Replenishment Lead Time)

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Today is 14.09.2016, Reservation is now changed to 16.09.2016 (within the 7 days Replenishment Lead Time)

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MRP run

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Since Reservation is within the Replenishment Lead time of 7 days causing ROP to fall below 800, system triggers for Procurement of the Fixed Lot Size of 1000

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Create a Customer Requirement of 1000 within the Replenishment Lead Time

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The new requirement within the replenishment lead time cause the stock level projection below ROP again !

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MRP run

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Another PR of 1000 triggered

Both Customer Requiremeents and Manual Reservations are considered when it is within the Replenishment Lead Time