MRP: Planning horizon & opening period

hi MM Experts,
please, explain what is "MRP planning horizon" and what is the impact on MD03 ?
please expalin elso "the MRP Opening period" and what's his utility ?
both of them are in the OMI8 tcode.
thanx in advance.
SDA

Hi. Hope this helps.
Planning horizon is the Time period in days, MRP will consider the requirements for Planning. We can define this in number of days in OPPQ and/or in OPPR.
Simply it is = Cumulative lead time + Longest batching period.
You can define the Planning horizon in OPPQ/OPPR as mentioned above
& under MRP group then we assign this MRP group to material master in MRP1 view.
NETPL ( Net change planning in planning horizon) you will get it in MD02, MD01: With this processing key only material where the indicator NETPL has been set in planning calendar are planned.For example if we set planning horizon as 30 days then in the material in which MRP relevant changes happened in last 30 days will only be planned. This planning restricts the scope of planning or number of material which reduces the runtime of planning run. Planning horizon is the period beyond it, requirements don't generate planned orders.
Opening Period is...
Opening period is like a "release window". The length of the opening period is the window of opportunity a planner has to convert the planned order to a purchase req.
For example - Component A has a lead time of 14 days and opening period of 5 days. Requirement on 12-22-03
Opening Date - 01/12/09
Start Date - 08/12/09
Finish Date - 22/12/09
Now the planner can convert the order starting Dec. 1st, instead of Dec. 8. It basically is a buffer in the lead time to get things on order a little sooner than needed.
Thanks.

Similar Messages

MRP planning horizon

Hello,
One of our businesses has a requirement that planning horizon in MD64 / MD65 be defined once only for the first 3 planning periods. Planning period is in months. They enter forecasts for 12 months. They want that the first time they use MD64 they should be able to make entries for all 12 months. Subsequently, when they are entering forecasts for planning periods they want that entries for the first 3 months from the current date should be locked/ uneditable. For example, on 1 Jun 2008 they enter quantites for the first 3 months as 1000, 1200, 800. The next time independent reqs are defined the quantities 1000, 1200 and 800 should be uneditable. Is this possible? Or is there a way to accomplish this at the initial screen where the planning horizon is entered (by placing a check of some sort on the "from" date so that it must be 3 months forward from the current date). Perhaps some check at the basis level? Any suggestions would be greatly appreciated.
Regards
Edited by: Khan Awkhan on Jun 5, 2008 9:23 AM

Hi,
In Jan first you have created 12 months requirement & ran MRP. So planned order created for all 12 months.
Now change in material master MRP type P1.
Planning time fence - 3 months ie, 90 days.
Again run MRP. System firm all the existing planned orders which are between these 90 days. No automatic changes will happen if you run MRP once again.
If you create new proposal with in this 90 days, system will not change the existing planned orders and new planned order will create after the planning time fence.
P1 function is, with in the planning horizon already existing planned order convert to firm planned order. If any new proposal comes within this period system creates planned order at the end of planning time fence.
Suppose if you run MRP on Feb, system will consider 90 days from the current date. So Feb, Mar,Apr planned order get firm. No automatic changes will happen.
Regards,
Dharma

Planning Horizon (NETPL) Period

Please inform where to assign or enter short planning horizon period in SAP PP, based on which MRP will be carried out for that particular period(short planning horizon)? i know we define short planong horizon through processing key "NETPL". Thanks in advance.

Hi ys yadav,
Go to T.code OPPQ in that select your plan and go inside there you find Planning Horizon there you maintained your planning horizon.
Hope this will help you,
Regards,
Rajesh Tayade

Planning Horizon

Dear All,
What is the MRP Planning Horizon,Please describe in simple

Dear,
You can define the Planning horizon in OPPQ under MRP group then we assign this MRP group to material master in MRP1 view.
NETPL ( Net change planning in planning horizon) you will get it in MD02, MD01: With this processing key only material where the indicator NETPL has been set in planning calendar are planned.For example if we set planning horizon as 30 days then in the material in which MRP relevant changes happened in last 30 days will only be planned. This planning restricts the scope of planning or number of material which reduces the runtime of planning run..
Planning horizon is the period beyond it, requirements don't generate planned orders.
Hope clear to you.
Regards,
R.Brahmankar

Planning Period , Planning Horizon terminology in MRP

Dear Sir,
While going thru the MRP related literature on SAP Help , I have not been able to understand the meaning , purpose and usage for the following terminology :
Planning Period
Planning Horizon
I request SAP experts to kindly help me to understand these terminologies and if possible pl give the example under the scenario of Make-To-Stock and Make-To-Order both please .
With Thanks and Rgds
Sonia

Hi,
Planning period facilitates you to put your demands as per your process e.g. day, week or month level.
e.g.
In demand mgmt you can put demands as given below by selecting planning period as per your requirements.
option 1. day level-----
day -               05.12.2009      06.12.2009       07.12.2009   08.12.2009
quantity           1000                1300                  0                   800
option 2. month level------
month                         12.09         01.10
quantity                      10000        12000
Likewise for other planning periods.
Regards,
Yogesh

MRP plans sales orders outside planning horizon

MRP plans Sales order for Finished Goods Outside planning horizon even when using NETPL. Strategy 40 is in use with 3 level BOMs. Planning horizon - 200 day. How could it be prevented?

Dear,
Please check have you assigned any MRP group to your material masters in MRP1view? Then check the planning horizon maintain in MRP group in OPPR also check same for your plant in OPPQ.
If you define it as 200 days then system will only plan the requirement which falls under 200 days with processing key as NETPL.
If we set planning horizon as 200 days then in the material in which MRP relevant changes happened in last 200 days will only be planned. Planning horizon is the period beyond it, requirements don't generate planned orders
Please check and revert back.
Regards,
R.Brahmankar

MRP not considering open purchase orders when planning for open sales order

Dear Experts,
1.I have open sales orders as well as planned Independent requirements for finished goods for the current month. Also I have open puchase orders for raw materials which is part of the Bill of material of the finished goods for the current month.
Please what do i need to do to make MRP consider my open purchase orders when the system is planning for the open sales orders.
2 what tcode can I use to delete all purchase reuisitions in the sytem

There was no response to these questions so i had to close it to make space for another

MRP looking past planning horizon?

Dear Experts,
We have a material that exists on a purchase order. The material is a HALB, with MRP Type = PD and
Procurement Type = F (purchased). The Planning Horizon for the plant is 180 days and there is no planning horizon defined for MRP Group. The Purchase Order has a delivery date of 12/31/2009 (well past the horizon). But, Purchase Requesitions are not being created during the MRP run. The MRP settings we are using are NETPL, 1, 3, 1, 3, 1.
It is acting like it is looking past the planning horizon and seeing the purchase order that is far out in the future.
Does anyone have any ideas on what is happening?
Thank you,
Melissa

Hi Melissa,
The 250 days is workdays & not calendar days & hence it is beyond 31/12/2009. This is the reason why the system is considering the PO.
If you're in test system, you can test by increasing the delivery date of the PO say to 31/12/2010 & run MRP, it would create a procurement proposal.
Hope it answers your query.
If helpful award points
Regards,
Vivek

MRP- Planning period

Hello gurus
We want the demand management for five years . But at the same time we want the MRP to restrict by 6 months or by 130 working days.
How to do both the functions ?
How the MD04 screen will be viewed ?
Thanks
JJ

- specify the horizon in MD61 & plan as per your need.
What do you mean by that ?
In MD61 in the initial screen, you have the input field to specify the planning horizon i.e. From & To, this is defines the duration for which you want to enter your needs & in planning method, you specify as M, i.e. Months, so you will have 12 * 5 which is 60 buckets
- your planning horizon determines the number of days upto which the needs
are considered (OPPQ)..
Is it for finished goods or raw materials . ?
The planning horizon is not dependent on the material type.
For example if the finished goods requirements is limited by 130 days ,
the vendor delivery time for the raw materials will be 4-6 months .
How MRP will be considered the BOM explosion ?
In this case, the system will plan for all needs which lie within those 130 working days, anything beyond that will not be planned as of the MRP run date.
Hope it is clear.

Planning Horizon Effectiveness

Dear Experts,
Can some one explain me what does the planning horizon in MRP mean?
In OPPQ,we have defined Planning Horizon as 180days.
What I would like to know is that,How this 180days are considered?Whether the Factory calender is considered? whether it is 180 days from the MRP run date or how?
I need to know this as my actual aim is to find out the reason behind the creation of system proposed Planned Orders. The system is considering the newly arriving Purchase orders only if it si scheduled before 10June09 and suppose if it is 11June09 the system proposes a Planned Order for the items.(But 11June is not 180days either from today's date or from the begining of 2009)
Please reply...
Points assured...
Regards,
Bhavin

During MRP you might be using Create Purchase requisition indicator 2 - Purchase requisitions in opening period. if you have set indicator 2 (Purchase requisitions in opening period), the system only creates planned orders for procurement after the opening period. Within the opening period system creates purchase requisitions.
When you select this indicator, the system creates purchase requisitions instead of planned orders when it determines an opening date that is before the date of the planning run

MRP planning run

Hi experts,
During MRP run for a material , open PO quantity is not considered If delivery date mentioned in that open PO exceeds 110 days from planning date(MRP run date). If it is less , it considers open PO quantity.
What could be the reason for it? Pls help me out.
Thanks in advance,
Rgds,
jay

The Planning Horizon entry for your plant must be 110 or more. Check it out in OMI8. Click on the 'Maintain' button after entering ur plant, click on 'Planning Horizon' to see the entry.
For open PO qty to be considered, try running MRP run with processing key as 'NETCH' in MD02 or whichever t-code u use this doesn't take planning horizon into account.
Amit G

Opening Period

Dear Experts,
What is opening period for planned orders/ MRP? How do we set it up?
Regards,
Sachin

Dear Sachin,
1) Opening period can be define in schedule margin key, while scheduling the Number of days
Maintained in Schdule margin key will be taken by system in MRP
2) in initail settings of MRP we have option Create Purchase Requisition in opening period
means MRP creates Pur Req in Opening period.
Also Plz refer this thread
[Planned order opening date;
Regards
Madhu

System considers dependant requirements lying outside planning horizon

Hello Experts,
Iam running the MRP for procurement. I have defined a planning horizon so that system will consider the requirements of that period. Iam using NETPL as my planning method in MRP. I wanted to create only purchase requisitions during this period so I selected 1 as my creation indicator as well.
But the issue Iam facing is, system is not skipping the dependant requirements which is outside planning horizon. System skips only PIRs.
For all the dependant requirements outside planning horizon, system creates planned orders and for those within plannning horizon system creates purchase requisition. Is there any settings to skip system considering dependant requirements outside planning horizon.??
Thanks
Prathib

Hello
I believe that there is a misunderstanding about what exactly is the planning horizon. Using a planning horizon does not means that the requirements outside the horizon will not be planned.
The planning horizon represents a part of the planning area, where a planning file entry is made for the MRP processing key net change planning in the planning horizon (NETPL).
In this kind of net change planning, only those materials that have undergone a change that is relevant to MRP within the planning horizon are included in the planning run. Such materials receive a net change planning indicator in the planning file.
That means, if an MRP relevant change is made for a material within the planning horizon, the planning file entry NEPLT is set for this material.
You can check in the SAP Help how the planning horizon works, see below:
"You can also use a planning horizon to further limit the scope of the planning run. In "net change planning in the planning horizon", the system only plans materials that have undergone a change that is relevant to the planning run within the period which you defined as the planning horizon. The system sets the net change planning horizon indicator automatically for these materials."
http://help.sap.com/erp2005_ehp_06/helpdata/EN/f4/7d274f44af11d182b40000
e829fbfe/frameset.htm
So, the planning horizon only define is the planning file will be marked as "net change planning".
BR
Caetano

Planning horizon and planning time fence

What is the meaning of terms
- planning horizon.
- planning time fence.
Where and how we can use these terms?
Kindly explain with a example.

Hi,
1. planning horizon
Net change planning in the system only plans materials that have undergone a change that is relevant to the planning run within the period which you defined as the planning horizon. The system sets the net change planning horizon indicator automatically for these materials.
In net change planning in the planning horizon, the system only plans those materials provided with the net change planning horizon indicator.
2. planning time fence
The planning time fence dictates a firm period for planning purposes. Subsequent MRP runs will not create planned orders within the time fence but will place them just outside it. Orders must be manually moved forward if desired. The idea is to create a short term period of plan stability.Check the MRP tabs on the Material Master for the planning time fence
period for the material.
Regards,
Sankaran

Planning Horizon & Direct procurement

Hi, how touse the tabs planning horizon & direct procurement in oppr screen while running mrp?

Hi Yadav
The Settings of
1) Planning Horizon in OPPR is meant for using Processing key - -NETPL (Net change for planning horizon) during MRP run : If u maintain the data say 100 days in this field that mean only those materials are planned in the planning run that have a change relevant to MRP within the period (in work days).The length of the planning horizon should at least include the following:
period in which customer orders enter
delivery times
complete material processing time
This setting is useful to restrict u r planning Horizon length to defined no of days say 100 days
2) Direct Procurement : The setting controls whether direct procurement is initiated by the planning run or by the production order.Using this indicator, you can procure non-stock items directly for an order, bypassing the warehouse.Direct procurement for "parts to be provided" is not supported in subcontracting.
U have to use Special Procurement key in Material master
Regards
Brahmaji

MRP: Planning horizon & opening period

Similar Messages

Maybe you are looking for