Net requirements calculation in Strategy Group 11

[Former Member]

Dear All,

Can we do Net requiremnt calculation in Strategy Group 11? Requirement is PIR should consume after GR from Production Order, with strategy group 11 client is satisfied but he required net calculation of stock, is there any settings for that, or any alternate? Pls share.

Thnks and regards,

Pradeep

[Former Member]

Dear All,

Thanks for sharing your suggestions, the issue got resolved my self only.

Regards,

Pradeep

[Former Member]

HI Malladi,

             share the knowledge sir,

[Former Member]

Dear Malladi Pradeep,

In MRP, requirement quantities are maintained in the system as planned independent requirements, customer requirements, dependent requirements, material reservations as well as forecast requirements. The system checks every exact requirement and every forecast requirement to determine whether they are covered by available warehouse stock and/or receipts (purchase orders, firmed procurement proposals, production orders, and so on)

Available stock is calculated as follows:

The make-to-stock strategy gross requirements planning is particularly useful in mass production environments; it is often combined with repetitive manufacturing. This strategy is particularly useful if you need to produce, regardless of whether you have stock or not. For instance, steel or cement producers might want to use this strategy because they cannot shut down production; a blast furnace or a cement factory must continue to produce, even if this means having to produce to stock.

This strategy is also frequently used if there is a Material Requirements Planning system in a legacy system that needs to be linked to R/3 which serves as a production execution system. The legacy system calculates a specific production plan, which has to be executed, regardless of the stock situation in R/3.

Gross requirements planning also has the following features in common with net requirements planning (10):

• Production quantities can be planned relatively effectively by means of planned independent requirements. It is possible to use information from the Sales Information System, flexible planning, or other planning tools to plan production quantities. This means that production and procurement of the required components is triggered before the sales order stage.
• Individual sales orders, which can be somewhat irregular, do not affect production.
• An accurate availability check is performed according to ATP logic during sales order processing.
• It is possible to perform a lot size "optimization" during planning so that you always plan convenient lot sizes in Demand Management or during the MRP run using lot size and/or rounding keys.

Please refer the sample scenario of Strategy 11

http://help.sap.com/saphelp_470/helpdata/en/cb/7f9b7043b711d189410000e829fbbd/frameset.htm

Regards

Prashant

[Former Member]

Hi ,

Your thread answer is not feasible as per the requirement.

Can we do Net requirement calculation in Strategy Group 11?

Kindly check tcode "OMPO" If in this tcode indicator "2" is activated then it wont perform net requirement calculation.It should be "1".

Pls check & revert.

TnX

[former_member214153]

Hi,

Strategy 11 in summary :-

1. Sales Order creation - no impact.

2. Goods Receipt - minus the quantity for the oldest planned independent in demand management.

   For e.g. if PIR is 100 and delivery 90, PIR becomes 10 (withdrawal 90).

3. Delivery - no impact as delivery is issue from sales order.

This strategy is particularly useful if you need to produce, regardless of whether you have stock or not. For instance, steel or cement producers might want to use this strategy because they cannot shut down production; a blast furnace or a cement factory must continue to produce, even if this means having to produce to stock.

You need to maintain the following master data for the finished product:

Maintain strategy group 11 on the MRP screen.
Set the Mixed MRP indicator to 2 on the MRP screen.
Maintain the item category group (for example, NORM) on the Sales Organization screen.
Maintain the Availability check field so that you perform an availability check without the replenishment lead time (checking group 02 in the standard system).


Strategy                                                        10                  11

Stock is taken into account                           Yes                 No

Reduction of planned independent

requirements takes place during …   … goods issue for   ... goods receipt for a production

                                                                  the delivery   order (discrete production),                                                           

                                                                                      for a planned order (repetitive

                                                                                      manufacturing), or for a purchase

                                                                                      order (trading goods).

Revert back if u have any query .....

Thanks,

Anurudh singh

[former_member213012]

I think Net Requirement Calculation depends upon the MRP Type , which calculates the net requirement planning for planned quantities.

Take MRP Type= PD and Lot Size=EX

Also look the customizing.

Strategy Group  11 ( PIR= BSF and CR= KSL)

Strategy Group is assigned with the MRP Group.

[Former Member]

HI,

I think you have activated planning indicator "2" in ur OMPO tcode that means this for gross requirement planning.system wont behave like net requirement planning that is happen in strategy 10.

I would like to suggest you should you custom strategy group & tcode OMP0 use indicator as "1"

Hope it will work for u.

Following are the main differences between Net & Gross Requirements Planning ( Strategy group 10 & 11):

Net Requirements Planning:

1. Stock is considered for planning.

2. Reduction of planned independent requirements ( PIR) takes place during goods issue for the delivery.

Gross Requirements Planning:

1. Stock is not considered for planning.

2. Reduction of planned independent requirements ( PIR) takes place goods receipt for production orde(discrete production), for a planned order (repetitive manufacturing), or for a purchase order (trading goods).

For your information pls check below thread,

http://scn.sap.com/thread/1921500

Pls revert in case any query.

TnX

[former_member206498]

Hi Pradeep,

Since you are using strategy 11, PIR is reduced during GR. In this case, when you do the GR, the stock is increased while the requirement is decreased. If net requirement calculation is taken, then on the next MRP run, the system will compare the remaining PIR with the increased stock that results in wrong calculation.

I think that is the reason why strategy 11 is using gross requirement calculation, i.e. to ignore the available stock in replenishment calculation. Maybe you need to revert back to your client to clarify the more detailed situation.

[Former Member]

Dear Pradeep

11 Gross (Make to Stock)

10 Net (Make to Stock)

40 Make to stock but First cofirmed the Customer Order

I think you want to say about 10 strategy.

Regards

Shamim

[former_member667328]

Dear,

Please find the relavant link for this,hope it will help:

http://scn.sap.com/thread/1975767

Thanks,

Mohit

[Former Member]

Dear Pradeep,

You can change the Planning Indicator  to '1" in the  Define Strategy . This can be done in OMPO and revert.

Regards,

Subrahmanyam B

[Former Member]

Dear ,

One more option is , You can Exclude the Sloc Stock always during your MRP run. But this is possbile for only One Sloc not all sloc stock.