MRP-Rescheduling Horizon

Hi Experts,
Could u please, explain what is Rescheduling horizon (OMDQ)?
In OMDQ , if I change planning horizon to 999 days from 100 days.What will be the effects of it?
Thanks in advance
Regards,
jay

Dear,
The rescheduling horizon is the period in which the SAP System checks whether the existing dates still suit the requirements situation for receipt elements that can no longer be automatically changed in the planning run. If the dates of a particular element are no longer suitable, the following exception messages are created depending on the requirements situation.
Rescheduling check is to change the dates of already existing firmed receipts which were not planned on the same day as the requirements day to suit the requirement.
For this we need to define a rescheduling horizon.
Rescheduling horizon defines the period for bringing the receipts that should be taken into account for rescheduling.
For further info: Please visit: http://help.sap.com/saphelp_40b/helpdata/pt/b4/7055967935d1118b3f0060b03ca329/content.htm
For second question, if you change it to 100 days,
If you put 100 days, for net requirement calculation, system will consider the firmed planned orders & receipts within 100 days.
If one firmed planned order is in 4 months before ie 120 days before, system will not consider for net req calculation.
Say demand is 100 on 23.09.08
Resheduling Horizon 100 days
Firmed planned order in 23.04.08
When MRP run system create planned order for 100 qty.
If rescheduling horizon 999 days, system will not create planned order & system propose reschedule the firm planned order to 23.09.08
Regards,
Syed Hussain.

Similar Messages

Rescheduling Horizon

Hi,
Can u explain me the use of *rescheduling horizon*?
How it will affect while planning?
More over i have another doubt like wen i created a sales order on 10th as the delivery date of this month and a PIR on 13th of this month.My statergy is 40 and my inhouse pdn is 1 day.When i run MRP, can u plz tell me the dates wen the planned order will b created?
Moreover if i want the the date of start date considering the inhouse pdn in the planned order itself,where shld i do the setting?
Regards,
Prasanth

Hi,
The rescheduling horizon, defines the period for bringing forward the receipts, and the receipt elements, which should be taken into account in rescheduling, are included in these.
In your example, you will get an exception message (depending on the tolerance values you have defined)to postpone the process , since the Sale Order is before the requirement.
pls refer the foll links
http://help.sap.com/saphelp_470/helpdata/en/f4/7d2c9744af11d182b40000e829fbfe/content.htm
Rescheduling Horizon
Re: Hi.Query on rescheduling proposal

Rescheduling horizon impact on net requirement calculation

Dear MRP experts ,
What is the impact of Recrudescing horizon on net requirement calculation .
Regards
Sasikanth

Dear Sashikant,
The rescheduling check is used to change the dates of already existing firmed receipts not planned on the same day as the requirement to suit the requirement date.
If you look at MD04, the rescheduling date is based on the Stocks Requirement date.
In the net requirements calculation, the system checks whether warehouse stock or firmed receipts are available to cover requirements. If a material shortage exists, the system usually creates a new procurement proposal.
Within this rescheduling horizon, the net requirements calculation checks whether, after a requirement, a firmed receipt exists, which can be used to cover this requirement. Then the system displays a rescheduling date as well as the exception message Bring process forward for this receipt. The net requirements calculation then uses this receipt and the system will only create another procurement proposal if the receipt quantity is not sufficient to cover the complete requirement. Several firmed receipts can be used to cover one requirement.
hope it helps. please revert back.
Regards,
Alok Tiwari

Rescheduling horizon at 999

Hello, we set our rescheduling horizon at 999 days for the correct MRP group in configuration, however when we run MD04, the date of 12/24/2018 did not reschedule. It should have pulled it in. We put the date of 12/24/2018 as a test to see if it would pull it in to within the 999 days, but it did not. What else could be causing the problem? Everything in the material master looks fine.
Thank you.

Hi,
What do you mean by "it should have pulled it in"? Are you expecting the PO lying outside the 999 day horizon to be brought inside it by MRP?
Marianne Zoricak wrote:
Hello, we set our rescheduling horizon at 999 days for the correct MRP group in configuration, however when we run MD04, the date of 12/24/2018 did not reschedule. It should have pulled it in. We put the date of 12/24/2018 as a test to see if it would pull it in to within the 999 days, but it did not.
If yes, then that's not the intended functionality. The functionality is intended to check if any firmed proposals that exist in future can cover new requirements by rescheduling the proposal. If true, the system will propose rescheduling. The original proposal should however be within the rescheduling horizon.
In your case, the PO could very well be outside the 999 horizon as pointed by Caetano. Besides, you have a situation of surplus. Both your customer orders are already covered by the stock and planned order and MRP has proposed cancelling your PO.

Infinite Rescheduling Horizon

Currently, the maximum rescheduling horizon is 999 days. Our customer queues up sales orders out in 2025 until they have been approved. When the order receives design approval from the customer, it is moved into the current period. Most of the materials are not custom and purchase orders and production orders for long lead items are created while the sales order sits in 2025. When the sales order is moved into 2007, new planned orders are created and the original purchase orders and production orders receive a cancellation message because they are outside the horizon.
Is there any way to increase the rescheduling horizon to stop the duplication of orders? Thank you in advance.

Hello Eric,
There is no option to increase the rescheduling horozon in customizing. Maximun will be 999 days only.
Why dont you limit the planning of the sales orders which are falling in 2025. You can limit this if you run the MRP with NETPL prpcessing key and defined some planning horizon (period) in customizing..for example 100 days...that means the sales orders whcih comes under these 100 working days from the day of the MRP are only relevent for the MRP and planned orders will be created for these sales orders only..for the rest of the orders there will be no planned orders.
There is no logic to have the planned orders for the requirements of the yesr 2025.
By doing this you can avoid cancellation messages and you can work with rescheduling horizon.
I still need the correct inputs from your side.
regards
TAJUDDIN

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.

MRP Reschedules PO ahead of Scheduling Agreement

Hi,
We have a situation where one company code (Company A) buys product from a second (Company B) via an inter-company Scheduling Agreement. The schedule lines are generated automatically from MRP.
Company A now has a need to purchase a one-off quantity of the same product from an external company and so have subsequently raised a Purchase Order with delivery dates in the future (after the next requirement from company B is due).
The result of the MRP run has been to prompt rescheduling of the Purchase Order in to meet immediate requirements and only generate schedule lines from Company B after the full Purchase Order quantity has been used. This is not as required, as the dates on the PO are those that are achievable by the external supplier.
I can't find any settings that relate to a prioritising of MRP elements which would imply that a PO has precedence over a Schedule Line, and I would rather not fix the schedule lines of the Scheduling Agreement.
Has anyone seen this before, or knows what I'm missing.
Thanks

Hi suresh
The requirement goes this way.the sales person creates a scheduling agreement instead of a sale order.The next process is running MRP for the scheduling agreement .
Just he wants to know through a report what are the sceduling agreements peding for MRP run.
Shankar

MRP Rescheduling messages with planning calendars

Hi Experts,
I have successfully set up a planning calendar and applied in material master with a period lot size so that MRP creates purchase reqs with a delivery date on a specific day of the week.
My problem is with the rescheduling dates that appear in MD04 for firmed receipts. These rescheduling dates align to the requirement date date and do not take into account the planning calendar.
Do you know if it is possible to configure the rescheduling to take the planning calendars into account?

Hi Timonthy,
I just had a similar problem last week and the simple answer was to remove the re-order point.
Then it orders only on the day it should (unless you again go below safety stock) up to the forecasted amount.
The other option is to maintain a delivery schedule as well.
That way it will always schedule the delivery on the day you want even when it plans on a day you don't want.
While SAP is not very consistent on what they call the two schedules, the one that is required for MRP is the planning calendar (order cycle) and the optional one is the delivery calendar. Delivery dates are moved to match the delivery calendar regardless of lead time.
Not too sure whether that helps, but it solved my problem.
Regards
Charl
Edited by: Charl Holtzhausen on Sep 11, 2008 2:31 PM

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

MRP Rescheduling Error with quota arrangement

Hi i have a problem when using a Quota arrangement in MRP. When i use NME59N to order,the system proposes to bring the first vendor 100% for a month and then the next supplier for a minimal share the following month. the quota is available clearly in PR'S but when converted to PO'S the rescheduling takes the first po as a referrece instead the assigned PR'S.Can any one help me sorting out this?

When you run ME59N you will convert the requisitions inot POs (the same requisitions that you see in MD04). The vendor assignment is not modified by ME59N. This is already done by the Quota when the MRP runs.
In ME59N you can control if each requisition will be converted into a single PO, if multiple requisitions are going to be joined and converted into a single PO, etc.
I am still not sure if your problem is with ME59N or what you don't like is how the vendor is assigned (considering the Quota) when the MRP is executed? If you see in MD04, is the assignment correct? if the vendor assignment that you see in MD04 is not what you want.. then we should find a solution working with the Quota and with the MRP paramenters. Is your problem the vendor assignment that you see in MD04?
Thansk and Regards,
Mariano Cabalen

MRP Rescheduling

Hello all,
Can you please tell me what rescheduling is? On what criteria is rescheduling carried out by MRP?
Also, the column rescheduling date in MD04, can you please let me know how and why this is calculated?
Thanks and regards,
Deepthi.

Hi deepthi
An important group of the exception messages mentioned above are the rescheduling proposals. In the net requirements calculation, the system checks whether warehouse stock or firmed receipts are available in sufficient quantity to cover requirements. If a material shortage exists, the system usually creates a new procurement proposal. The rescheduling check is used to change the dates of already existing firmed receipts not planned on the same day as the requirement to suit the requirement date. For this purpose, the system displays the appropriate exception messages with rescheduling proposals for these firmed receipts to be processed by the MRP controller.
You have defined the rescheduling parameters in Customizing for MRP:
per plant in the IMG activity Carry out overall maintenance of plant parameters
per MRP group in the IMG activity Carry out overall maintenance of MRP groups
The rescheduling date is only displayed in the MRP list. The system only displays the current stock/requirements list if you trigger rescheduling with the appropriate function.
regards
Sachin

MRP Type V1 - Does it create Exception Message for "Reschedule-in"?

Hello Experts,
We are using MRP Type V1 (Which has the Manual Re-Order Planning + External Requirements). However we are facing and issue with the Rescheduling part. Scenario is as following:
Material ROP is - 5000
Open Pur Ord is - 5000 (due in 01 June'09) based on the Std Lead time of the Material
Stok on hand is - 0
At this point a Sales Order is entered for 1000 pcs
After MRP Run, we expect an Exception Message for the Purchase Order to have "Reschedule-in". But, instead, system creates a PReq for 1000 pcs and the required date is NOT the Sales Order required Date but based on the Std Lead Time of the Material.
I have set the Material Lead time - 60 Days
I have set the Reschedule horizon - 0 Days ( I even tried with different Days but NO use)
However, when I change the MRP Type to PD, system generates a "Reschedule-in" Exception Message for the Purchase Order.
How can I get the "Reschedule-in" Exception Message for the Purchase Order with the MRP Type V1?
Thanks for your help in Advance!

Anil,
Reorder point/External MRP performs net requirements calculation (within replenishment lead time). If the existing firmed supply elements minus the existing requirements bring the projected stock below ROP, it will propose an order that will bring the projected stock back to reorder point. The proposal will generally come at replenishment lead time.
In the normal business cycle, your sales order would confirm to lead time, and you now have a confirmed sales requirement at lead time, plus a new purchase req to bring the stock back to the reorder point. The scenario you have described is working exactly as it is designed. Consumption based MRP will not normally try to reschedule supply elements to match requirements inside of lead time.
Rescheduling horizon generally is counted from the end of lead time. It won't help you here.
I guess if you insist on having a reschedule message, you could change your lead time to 0 days. Not a wise move in my opinion. You then have locked yourself in your choices of types of Sales order availability checks into one that ignores lead time. You also have to find a way to let your buyers/planners know what the 'real' lead time is when they place their orders on the vendors.
I don't know why you are using a consumption-based planning type (reorder point). It sounds like your business requirements are that you actually need to be using a demand-type planning method (eg, your supply elements are driven by your demand, not by a reorder point/desired stock level). If PD works the way you want, why aren't you using it?
Regards,
DB49

DONOT RESCHEDULED IN MRP

hello friends!
i have problem in MRP run some of the orders get RESCHEDULed after its parent order get TECO status that i want to eleminate in the next MRP run
i have product say PA0160R3NRJ02000 & its component B01600140050F000
now i create production order of PA0160R3NRJ02000 then order reserved for B01600140050F000 as follows-
30.10.2007     ordRes     PA0160R3NRJ02000</b>     100-     100-
30.10.2007     PrdOrd     000001011171/PP01/Re     100     0
30.11.2007     OrdRes     PA0160R3NRJ02000          200-     200-
30.11.2007     PrdOrd     000001011173/PP01/Re     200     0
30.12.2007     OrdRes     PA0160R3NRJ02000          300-     300-30.12.2007     PrdOrd     000001011171/PP01/Re     300           0
now after creating 30.12.2007 production order of PA0160R3NRJ02000 for 300 qty.& if 30.10.2007 production order of PA0160R3NRJ02000 get TECO,then the situation will be as follows-
30.10.2007 PrdOrd     000001011171/PP01/Re 28.11.2007       100     100
30.11.2007 OrdRes     PA0160R3NRJ02000                      200-              100
30.11.2007 PrdOrd     000001011173/PP01/Re                 200     100
30.12.2007 OrdRes     PA0160R3NRJ02000                     300-     200-
if i take MRP run it will create 200 qty. plan order of B01600140050F000
now my problem is that i want order qty of 300 to be generated through MRP & 30.10.2007 production order 000001011171/PP01/Re not to be rescheduled
please give solution
regards,
mangesh

Hi,
you can define in plant parameters oppq or via MRP group oppr which orders are to be included in the rescheduling horizon.
Regards,
nandha

How it works Rescheduling as well Planning horizon

dear Gurus,
I have a situation quite strange :
I have a Customer requirement with del date 03.11.2008 which refer a planned order firmed that has been moved at 12.09.2009, the MPS run create another planned order with reference to the customer requirement.
Now I check the planning horizon as well as the rescheduling horizon and respevectly are 253 and 180.
I would like to understand how the rescheduling horizon is managed and as well the planning too.
Could somebody give me the some help?
regards
Gianluca

Ok then it is fine.
Planning horizon -
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.
example if it is say 30 days, then the requirements whaich are with in 3 months from today will be considered for net qty calculation during MRP.
Rescheduling horizon - The rescheduling period represents the period in which the system checks whether the existing dates of the receipt elements that are no longer allowed to be changed automatically still suit the requirements situation. If the dates of these elements are no longer suitable, the system creates the following messages depending on the requirements situation:
Bring operation forward, if the date of the requirement lies before the date of the receipt element.
Postpone operation, if the date of the requirement lies after the date of the receipt element.
Reverse operation, if the requirement no longer exists.
In reschduling check if you activate the check for firmed planned orders in OMDW, then it will get the rescheduling date after the MRP run so that you can make the changes.
If you donot activate the check, then system will not consider the firmed planned order even if it is with in resheduling horizon and create a planned order.
Now tell me what setting you have in OMDW.

MRP Type P1 and late firm schedule lines

Hello All,
     We are using MRP Type P1 which firms our schedule agreement schedule lines within the planning time fence (as desired). However, sometimes the supplier is late on delivery and the firm schedule line goes into the past.
     Is it possible to have MRP move the firm schedule line delivery date to today instead of going into the past?
     Thank you,
     Jerry

Hi ,
Bring process forward (reschedule in)
Within this rescheduling horizon, the net requirements calculation checks whether, after a requirement, a firmed receipt exists, which can be used to cover this requirement. Then the system displays a rescheduling date as well as the exception message Bring process forward for this receipt. The net requirements calculation then uses this receipt and the system will only create another procurement proposal if the receipt quantity is not sufficient to cover the complete requirement. Several firmed receipts can be used to cover one requirement.
It does not take in to account the GR processing time and it is purely based on the stock requirement date , parameters in Procurement and Scheduling in the Material Master
So it will consume the requirement backward scheduling and bring the Process forward.
Kumar which strategy are you using ? scheduling agreement is of weekly , daily or monthly bucket ?
How many days SA bring to Production and How many days SA for forecast you are doing ?
Are you using any Program to convert these SA in to PIR and upload ( using any program ) .
Regards,
Jayavimal
Edited by: jaya vimal on Jun 16, 2010 1:33 PM

MRP-Rescheduling Horizon

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