What is difference between PIR consumption and PIR reduction

[premlahar]

HI All ,

What is the difference between PIR consumption and PIR reduction ,

why there is no effect of Consumption mode in Strategy 10 ,even though SAP  Help  on Strategy 10 says " The system always reduces the oldest planned independent requirements unless the consumption fields (Consumption mode, Fwd. consumption per., Bwd consumption per.) are maintained in the material master or in the MRP group."

Pls Clarify the conceptual doubt

Regards

Prem

[rupesh_brahmankar · Accepted solution]

Hi Prem,

Please refer OSS note 772856 - FAQ: Consumption of planned independent requirements question 1 and 2

1. Question: What is the difference between planned independent requirement consumption and planned independent requirement reduction ? Answer: The consumption reduces planned independent requirements dynamically, whereas the reduction physically reduces the planning quantity and increases the withdrawal quantity accordingly. For example: You create a planned independent requirement with 100 pieces. This planned independent requirement is consumed against a sales order with 10 pieces. The planning quantity and withdrawal quantity remain the same (see MD63) but the planned independent requirement is displayed in the stock/requirements list (MD04) with the quantity 90. The independent requirements reduction occurs when you post the goods movement, in this case, with the goods issue for the sales order. The planning quantity of the planned independent requirement is reduced to 90 pieces and the withdrawal quantity is increased from 0 to 10 (see MD63). In the stock/requirements list, the planned independent requirement is still displayed with 90 pieces despite the reduced planning quantity because when you post the goods issue, the customer requirement against which the planned independent requirements had been consumed also disappears.

2. Question: Which consumption parameters (Consumption mode/consumption period) are taken into account? Answer: The parameters maintained in the material master (material requirements planning view 3) have the highest priority. If you do not specify a consumption mode, the system uses the consumption parameters from the MRP group that is assigned to the material. If a consumption mode is not specified there, the consumption mode is set to '1' by default (backward consumption only) with a (backward) consumption period of 999 days. This means that the consumption cannot be deactivated because the consumption parameters have not been maintained. The consumption periods are calculated in workdays.

Regards,

R.Brahmankar

[premlahar · Accepted solution]

HI  Rupesh

Does this mean that for 10 , there is no consumption and there is only PIR  reduction , so there is no effect of consumption mode , and for 40 there is both consumption and  PIR reduction.

Pls clarify

Regards

Prem

[rupesh_brahmankar · Accepted solution]

Hi Prem,

For  planning strategies 10 , the reduction occurs in the time scale up to the current date and the oldest planned independent requirements are reduced first The planned independent requirement is reduced during processing of the goods issue. Good Issue is done for the delivery/sale order. You can see this quantity as withdraw quantity in the scheduline line tab in MD63. The used consumption mode is not effective.

Regards,

R.Brahmankar

[premlahar · Accepted solution]

Thank you for reply ,

I my confused by the statement in SAP help.

on Strategy 10 says " If you want the system to reduce future planned independent requirements when it makes withdrawals for unplanned sales orders, you must maintain the appropriate consumption period."

Regards

Prem

[rupesh_brahmankar · Accepted solution]

Hi Prem,

Please don't get confuse,

Please refer OSS note 772857 - FAQ: Independent requirements reduction/withdrawal quantity

3. Question: Can I set the make-to-stock production (strategy 10) or gross requirements planning (Strategy 11) to reduce planned independent requirements in the future? Response: For these planning strategies, the reduction occurs in the time scale up to the current date and the oldest planned independent requirements are reduced first. By maintaining the consumption period forwards, planned independent requirements are used for the reduction from the current date up to the number of days in the future entered there. The used consumption mode is not effective. See Note 38687. Also you can test the same.

Regards,

R.Brahmankar

[Caetano · Accepted solution]

Hello

On the following document you will find links to the demand management FAQ notes, including the note already refered by Rupesh:

On these notes you will find the answer to this and to another frequent questions.

BR

Caetano

[premlahar · Accepted solution]

Thank you Caetano

[former_member184574]

Hi Prem,

Check the below link....

Thanks

Kumar