MRP Type V1 consider Planning Horizon

[Former Member]

Dear Expert,

I have set MRP type V1 as our MRP procedure (Manual Reorder Planning w/ External Requirement). The following scenario that I am facing problem;

ROP = 100

Lot Size = HB = 110

Stock available = 0

Plan Delivery Time = 45

Planning Horizon = 75 days

Sales Order #1 = 20 (Delivery Date = 15/01/2015)

Sales Order #2 = 100 (Delivery Date = 30/01/2015)

Sales Order #3 = 150 (Delivery Date = 15/05/2015)

When I run MRP on 01.12.2014 with parameters;

Processing Key = NETPL

Create PR = 1

SA Delivery Scheduling line = 3

Create MRP List = 1

Planning Mode = 3

Scheduling = 1

The system trow me result (MD04)

PR = 380 w/ delivery date 15.01,2015 (Plan delivery Time is 45)

My query is, why does the system consider all requirement even beyond Planning horizon, the result suppose to be PR = 230. Is it V1 does not consider Planning horizon and how to rectify? Appreciate any single answer, thanks.

Best regards,

M. Mahjuddin

[JL23]

one figure is missing: your current stock.

how MRP does with V1 reorder point with external requirements is explained with example in OSS note 51576 - MD01: MRP type V1/V2: reorder point w. requirements

[Former Member]

Dear Jurgen,

Thanks for quick response, actually in my scenario I have mentioned the current stock = stock available = 0. Understood, my question is, is true V1 does not consider Planning Horizon and if yes is there any workaround on this issue. Can I use MRP type PD and Lot Size HB, instead of using ROP can I maintain safety stock?

Best regards,

M.Mahjuddin

[Caetano]

Hello

According to the F1 help, The planning horizon is calculated in workdays. Therefore, you must consider non-working days from your plant factory calendar on the calculation and the planning horizon may be longer that you are considering.

BR

Caetano

[Former Member]

Dear Caetano,

Understood that the planning horizon is working base on working-day. However, even I run MRP with NETPL system was taking the requirement in one year advance while planning horizon only 75 days. I have gone through the setting of V1, standard SAP only provides " "  External requirement are not taken into account, 1. External requirement in total horizon, 2 External requirement within replenish lead time. So my question, is it true planning horizon not considered  for V1?

Best regards,

M.Mahjuddin

[JL23]

Can you check your MRP type in IMG > MM > CBP > Master Data > Check MRP Types

tell what number is entered in the field "Include ext. reqmts"

[Former Member]

"1"  External requirement in total horizon.

[JL23]

I tested it too and came to the same result in my IDES system, SAP is not considering the planning horizon. The requisition includes all sales order quantities that are currently in the system.

[Former Member]

Yes...Reorder Point will not consider Planning Horizon. Anyway let find workaround.

Thanks

[Caetano]

Hi

I know that posting to old threads is not a good habit (forgive me ) but this question was asked again on the PP forum and I made a lot of research about it.

Basically, reorder point with external requirements will consider external requirements outside the planning horizon, because otherwise a planning run with key NETCH would calculate a different quantity for the replenishment proposal than a planning run with key NETPL, which is not a desired behavior.

Please find the details of my analysis on the thread below:

BR

Caetano