Forward & Backward Scheduling

Hi,
When i m Creating SO for MTS(Strategy 10) scenario its not confirming the date in schedule lines.
but is confirming date in schedule lines in MTO(Strategy 20) scenario.
why is it so?
ie. system not doing Forward scheduling in MTS???
Regards,
Amol

Hi
t code OVLY
see for yor doc type backward scheduling is ticked
If ticked then it performs only backward and stops and doesnt do forward
If not ticked then it does both
Backward scheduling first and suppose that fails it does forward scheduling
Remove the tick and try
Menu path
Img-logistics executionshipping-basic shipping functions-scheduling-delivery scheduling and transportation scheduling---define scheduling by sales doc type
Regards
Raja

Similar Messages

Forward and Backward Scheduling

I have a couple of related questions.
1. Where can I configure if I want Forward/Backward Scheduling in Customization? and if I leave it blank will it do forward or backward scheduling?
2. Does the system not perform backward scheduling if Replenishment Lead Time (RLT) is setup? If yes why?

Hi,
Backward scheduling is the calculation of deadline dates: the arrival time at the customer site is calculated as the earliest
possible goods receipt time at the customers unloading point on the requested delivery date. All four of the delivery and
transportation scheduling lead times are subtracted from the customeru2019s requested delivery date to determine if this date can
be met.
The transit time, loading time, and pick/pack time are subtracted from the customeru2019s requested delivery date to calculate the
required material availability date.
The system calculates backward scheduling as follows:
Requested delivery date minus transit time = Goods issue date
Goods issue date minus loading time = Loading date
Loading date minus transportation lead time = Transportation scheduling date
Loading date minus pick/pack time = Material availability date
Forward scheduling is also done if no product is available on the material availability date calculated by backward
scheduling. The system does an availability check to determine the first possible date when product will be available. This
new material availability date forms the starting point for scheduling the remaining activities. The loading time, pick/pack time,
transit time, and transportation lead time are added to the new material availability date to calculate the confirmed delivery
date.
Regards
Ram

Dirrerence between backward scheduling and forward scheduling

hi Friends,
This is madhusudhan i need diff b/w backward scheduling and forward scheduling
plz do the needfull asap

Hi,
Backward scheduling is the calculation of deadline dates: the arrival time at the customer site is calculated as the earliest possible goods receipt time at the customers unloading point on the requested delivery date. All four of the delivery and transportation scheduling lead times are subtracted from the customers requested delivery date to determine if this date can be met.
The transit time, loading time, and pick/pack time are subtracted from the customers requested delivery date to calculate the required material availability date.
The system calculates backward scheduling as follows:
Requested delivery date minus transit time = Goods issue date
Goods issue date minus loading time = Loading date
Loading date minus transportation lead time = Transportation scheduling date
Loading date minus pick/pack time = Material availability date
Forward scheduling is also done if no product is available on the material availability date calculated by backward scheduling. The system does an availability check to determine the first possible date when product will be available. This new material availability date forms the starting point for scheduling the remaining activities. The loading time, pick/pack time, transit time, and transportation lead time are added to the new material availability date to calculate the confirmed delivery date.
Reward points if it helps

Calculation of start date with backward scheduling

Dear all,
I am facing an issue related to backward scheduling. I have requirement in which whenever backward scheduling is used, system should calculate from last activity to first for calculation of schedules which is fine. But when running scheduling i am giving finish date as input and system is always using start date as current date and not calculation last date from last. For example if i input finish date as 15 feb 2015, and there is only one activity of 15 days, system should count start date from 1 feb 2015. Please help me how i can achieve this, currently its always putting start date as current date.
My current settings are--
Project definition- WBS Scheduling profile- Backward scheduling
                              scheduling scenario- Free scheduling
Network-      Planning type- basic dates
                    Scheduling type- Backward
Please help.
Thanks

Dear all, this issue is resloved. Reason was that by default i am using forward scheduling for all project but in case of backward scheduling, user change schedule type at project definition and network. I was removing start date and putting finish date and running scheduling. Missing step from my side was i need to first copy date from top to down than run scheduling again.
Thanks.

Basic finish date earlier than basic start date while backward scheduling

I am encountering an issue where in when I am selecting backward scheduling for a process order and I am entering the Basic finish date, afte which system is giving me a Basic startdate which is after the basic finish date.
For eg:- When i give the basic finish date as 08.12.2011, system is giving me basic start date as 09.12.2011
I have checked the recipe of the material. In the recipe one major flaw that i found out was that all the activity timings were maintained as 0. But when i created a similar scenario in the testing client, i am not getting the issue.
Please help.

Hi,
Check what is maintawined in number of days the start day is allowed to be in the past in scheduling parameters of the order type, in OPU3. If there is an opening float defined in schedule margin key of the order, and concerning this float backward scheduling finds a start date which falls into past, lead time scheduling will automatically switch to forward scheduling starting from today. 9.12.2011 could have been deducted this way. Also check the factory calendar if days upto 9.12.2011 are defined as working days.
Regards.

Backward scheduling in sales order

Hi all,
I have 2 routes maintained which should be determined by different shipping conditions. Let's name them as Route A with transit time 4 days and Route B with transit time 2 days.
When creating sales order, the backward scheduling takes place. To my understanding, in case the material available date is calculated as in the past, forward scheduling will take place.
My question is - I have 2 routes with different transit time. Is it possible to make the backward scheduling checking all available routes (in my case, ignoring the shipping condition) before start the forward scheduling?
Thanks in advance.
Cheers, Kenneth

This is how the system works:
the route is determines in FM SD_ROUTE_DETERMINATION. this is reached via the following call stack:
SAPL0VRF FUNCTION SD_ROUTE_DETERMINATION
SAPFV45P FORM VBAP-ROUTE_ERMITTELN
SAPFV45P FORM VBAP-VSTEL_ERMITTELN
SAPFV45P FORM VBAP_FUELLEN
SAPMV45A MODULE (PAI) VBAP_FUELLEN
As you know, shipping conditions are used as a criteria to find a route.
So lets say:
Shipping Conditions A (Air) ---> Route 1 will be determined
Shipping Conditions T (Truck) ---> Route 2 will be determined
Route 2 gets determined. Later, Function SD_SCHEDULING will be called. The following call stack reflects this:
SAPLV03C FUNCTION SD_SCHEDULING
SAPFV45V FORM VERSANDTERMINIERUNG_NEU
SAPFV45V FORM MVERF_AUFBAUEN_WMENG
SAPFV45V FORM MVERF_AUFBAUEN
SAPFV45V FORM VERFUEGBARKEIT_PRUEFEN
SAPFV45V FORM BESTAND_BEDARF_ABGLEICHEN
SAPFV45P FORM VBAP_BEARBEITEN_ENDE_VERFUEGB
SAPFV45P FORM VBAP_BEARBEITEN_ENDE
SAPMV45A MODULE (PAI) VBAP_BEARBEITEN_ENDE
The call of function SD_SCHEDULING looks like this:
call function 'SD_SCHEDULING'
   EXPORTING
     if_schedule_direction   = v03c_backwards
     if_schedule_shipping    = us_vstrm
     if_schedule_transport   = us_trtrm
     if_shipping_point       = us_vstel
     if_weight_group         = us_grulg
     if_loading_group        = us_ladgr
     if_transport_route      = us_route <<<<<<<<<<<<<<<
us_route contains the route that is determined in FM SD_ROUTE_DETERMINATION.
So only 1 route will be passed to SD_SCHEDULING. In this example, use_route = "2" (Route 2).
My understanding of your issue is that you may have a requested delivery date = 10th April (for example)
10th - 4 days = 6th, a date in the past so system must do a forwards scheduling, and then we inevitably have a later confirmed delivery date. However, before you have the system do a forwards scheduling, you want the system to see if the requested delivery date of April 10th can
be reached with route 1.
10th - 2 days = 8th, so there is no need to execute the forwards scheduling as the customers requested delivery date can be met
It sounds like a reasonable request to me (Route 2 could be cheaper and meet customer's delivery date but if it cant be reached, then use route 1 as you will get goods to customer on time even if it is more expensive), but I do not think it is easily achieveable. The ECC system is just not as clever as that. Maybe the APO scheduling offers some more flexibility regarding this? The ECC system simply uses the route (i.e. transit time of route) as part of the initial backwards scheduling. If dates in the past, it will switch to forwards scheduling.
There is no method by which it will not switch to forwards scheduling if there is another route available. It cannot do this because as far as FM SD_SCHEDULING is concerned, there is only 1 relevant route.
I am not even sure if this is possible via a user exit. The problem is preventing the forwards scheduling in the case of route 2 resulting in past dates. There is definitely no user exit to do this within SD_SCHEDULING. And then there is the possibility of route 1 determining past dates. In the case of both routes determining past dates, which route should be used. So I do not think there is any possibility to so this from within the scheduling function.
Maybe you could implement your own "rough" scheduling logic in EXIT_SAPL0VRF_001. This exit is called in FM SD_ROUTE_DETERMINATION and allows you to determine your own route. And then this route will later be passed to the standard scheduling function. This would be a fairly significant development effort though.

Backward scheduling

We are trying to configure backward scheduling for our SAP system. Suppose the requested delivery date by the customer is 22.07.2011, the goods issue date should be 21.07.2011 as goods should leave the factory before one day in order that it should be received by the customer on time.
This goods issue date is being calculated based on Route, i.e. for route 001 the transit time mentioned in the configuration is 1 day but still system is not displaying the goods issue date 1 day less than the requested delivery date.
Please guide me if I missed anything.

Hi,
You can check whether the route is determined correctly in the sales order and the factory calender of the forwarding agent is maintained in the route in case the shipper calender different from that of the forwarding agent calender.
Regards

CTM Backward Scheduling

Hi Guru's,
I'm quite new to SNP and CTM so I need help on the CTM process. I have read and search on how the Backward scheduling works for CTM and what are the setp-up. Below is the scenario.
For example, I'm running CTM with Finite scheduling so it will take into consideration the Capacity of the resource. The capacity of the resource per week is 150, but on week 7 the total demand is 400. Given that week 5 and 6 already have capacity of 100 and 100 respectively. May I know how long does it takes for CTM to consider rescheduing the other demand backwards (week 4, week 3 etc.) ? Where is the backward scheduling for CTM set-up? Please note that we are not using forward scheduling.
Thanks a lot,
Raymond

Hi Raymond
Your first Q: How long it takes to schedule it back--- It depends on many factorsdo you allow lateness/shortage--Order Creation Frame,Maximum Lateness/Earliness allowed,overall leadtime etc...(//ctmcust1)/MAT1 Settings
Second Q-where you set scheduling direct-You set the scheduling direction in CTM Profile (strategies tab)
But,if that could not be done,CTM switches automaticallly to 'Forward' irrespective of the setting..
Thanks and Regards
Suresh
NB:Please reward answer if it is helpful/useful

On iOS 7.0.2 everytime I unlock my phone while my music is playing, it skips. Forward, backward, and by small and large amounts of time.

On iOS 7.0.2 everytime I unlock my phone while my music is playing, it skips. Forward, backward, and by small and large amounts of time.

Hi cowboyincognito,
Thanks for visiting Apple Support Communities.
If you don't have the option to play music by genre on your iPhone, try this step to find the Genre option:
Browse your music library.
You can browse your music by playlist, artist, or other category. For other browse options, tap More. Tap any song to play it.
To rearrange the tabs in the Music app, tap More, then tap Edit and drag a button onto the one you want to replace.
Best Regards,
Jeremy

To extend a clip I have `Show Fine Tuning controls' turned on in my iMovie 11 preferences, but the blue forward/backward buttons don't appear. To get the orange handle bar, is there a hotkey?

To extend a clip I have `Show Fine Tuning controls' turned on in my iMovie 11 preferences, but the blue forward/backward buttons don't appear. To get the orange handle bar, is there a hotkey?

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Internet Explorer's forward/backward for next/previous image

In addition to right/left arrow to move to next/previous image I would like LR team to add this keyboard shortcut:
Use Internet Explorer's forward for next image.
Use Internet Explorer's backward for previous image.
Here is the reason. I have ViewSonic mouse with five buttons. Extra two buttons I use for forward/backward command within Internet Explorer. It would be nice if the same two extra buttons I could use in LR.
At the moment I have the two extra buttons programmed to function as right/left arrow. That allows me to use them to go next/previous image in LR. In order to use them as a forward/backward command within IE I have to press Alt key.
It would be nice if LR team could add IE forward/backward to the list of keyboard shortcuts.
Best regards,
Ivan Kmecko

This is a function of the mouse driver...you should be able to configure settings based on the current application so LR and IE can use the same keys but it'll mean different things in each app.

Planning Run - Enhanced Backward Scheduling Error

Hi SAP Expert,
I encountered planning run error "Heuristic terminated due to a possible endless loop" after I run the planning run via transaction /SAPAPO/CDPSB0 - Production Planning Run with heuristic "Enhanced Backward Scheduling".
Do anyone have any idea on it?
Thanks.
Regards,
Hooi Chia

Hi All,
This issue had been resolved. I'm now close this issue.
Regards,
Hooi Chia

I can't get big forward/backward buttons

I have always customized my Firefox browser (thats why I have always loved Firefox since back in version 1.x. However I noticed that Firefox is suddenly becoming less and less customizable and more and more frustrating. I have gotten it to where I want it (almost). For some reason my forward/backward buttons are stuck on small. When they are in the "Navigation Toolbar" they are nice and big, but they shrink in the "Menu Bar". They never did this in 3.6 or prior to 3.6, they always worked fine. I tried turning "Small Icons" on and off with no success.
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I searched the manuals and the FCP shortcut tool, but I don't really see anything similar-- unless I'm totally missing something. Does FCP have such a feature?
Thanks a bunch.
Message was edited by: Anthony Tutrone

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Backward- Forward and Forward- Backward

Hi, all!
Can you explainfor me about +Backward- Forward and Forward- Backward+ in General Setting-> Inventory tab-> Planning.
I don'nt understand it, can you make clealy
Thank you!

Hi....
Consumption Method there are two available methods of forecast consumption
by the Sales Order:
Backward- Forward In this method, the Sales Order first goes
backwards to 'consume' the forecast which is closest to the Due Date of
the order and continues to the first day of the range if required (as
defined in Days Backward field below),
After that, if no forecast is found (or the forecast, which was consumed,
was insufficient) the Sales Order goes from the Order's due date and
forward (see an example below).
Forward- Backward - In this case the sales order goes forward to
'consume' the forecast which is closest to the Due Date of the order and
continues up to the last day of the range if needed (as defined in Days
Forward field below). After that, if no forecast is found (or the forecast,
which was consumed, was insufficient) goes from the Order's due date
and backward.
Days Backward - Defines the maximum number of days for the Sales Order to go
backwards in order to 'consume' the forecast.
Days Forward - Defines the maximum number of days for the Sales Order to go
forward in order to 'consume' the forecast.
If you are not yet understand you can search in SAP Portal a note that related to that.
Or if you want, you can send me your email address and i will send you the PDF file about MRP.
It has complete explanation for you to know.
Regards,
Lina Yuanita

Forward & Backward Scheduling

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