Network Heuristics

Hi,
We have 3 locations.
1.DC - A - Procurement Type -F
2.Plant - B * Procurement Type - X
3.Sub Contractor Location - C* Procurement Type - E
Demand for A is covered by the Plant B. To cover this demand plant B can either Produce / subcontract to vendor.
Master Data maintained
1.Transportation Lane between Vendor Location and Plant.
2.Transportation Lane between Plant & DC.
Scenario:
1.I create demand of 100 PCS in DC.
2.This demand will be visible at Plant B in the Distributed Demand KF.
When i execute NEtwork Heuristics at Plant B the system do not plan. But when i execute Location heuristic at PLant B, system plans at the Subcontracor location and creates planned order at subcontractor location.
When executing Network heuristics System should behave in the same way as Location Heuristics. Please advice if we miss anything relevent to MAster Data.

Srinivas,
Thanks for your reply. I execute network heuristics at product level only.I loaded the part number at plant B and executed the NEtwork Heuristics.
Our Scenario :
1. DC - A
2. Plant - B
3. Sub Contractor Location - C
I undertstand trasportation lanes connects all three locations. Apsrt from this can you please let me know the purpose / importance of the External Procurement Relationship ?
From Sub Contractor location to the Plant we have external procurement relationship created when we CIF'd the Subcontractor Info Record. Do we need standard External procurement relationship from Plant B to DC- A ?

Similar Messages

SNP LOcation Heuristics

We have a scenario where in we have 2 Distribution centres (DCs) , 2 Manufacturing plants (MF) and a single vendor.
The demand for the Finished good is at both the DCs.
Finished good exits at the DCs and the MF plants.
The procurement type for the finished good
--> at MF Plant is In-house
--> at DC is External
There are Transportation lanes between
Vendor --> Manufacturing Plant1
Vendor --> Manufacturing Plant2
MF1 --> DC1
MF1 --> DC2
MF2 --> DC1
MF2 --> DC2
Now when we take the Location Heuristic run at DC1 for the Finished good,
the Purchase requistion is created at teh DC but, the demand is not propagated to the MF plant. i.e there is no Distribution Demand (Planned)at MF.
What could be the reason for this?
Kindly help.
Thank u in Advance
Regards
Pranali

Can you confirm if network heuristics is giving appropriate results ?
Before even going to location heuristics level, can you try to enter a distribution receipt at DC1 and see if any pop-up comes up for you to select a mode of transport ? If not, which I guess is very likely the case, I would assume there is something more to be done in master data setups. The manually entered purchase req should have a source of supply. Check for TLane validity and mode of transport.

Use of Planning File Entry

Hi,
what is the use of planning file entry and when it will be generated?
- Ram.

Hi Ram,
Planning file extry will be created or executed by system to
the objects (location products) which undergo planning run.
ie Whenever a location product undergoes demand or supply
relevant changes, during planning run for system to plan, a
planning file entry will be marked by system which will be
used as basis for planning.
This will be used in cases where network heuristics kind of
runs will be executed
Regards
R. Senthil Mareeswaran.

Icon in Data View in Planning Book

HI
For one of the requirements in our project in SCM 7.0, in the background SNP run we select the option of "Location (Heuristic) + Take into account found components in planning run". When we want to run interactively in the Planning Book, we want an icon to replicate this selection combination of "Location (Heuristic) + Take into account found components in planning run".
I am aware that I do not want to use "Multilevel Heuristics" icon in the Planning book because "Multilevel Heuristics" icon corresponds to "Network (Heuristic) + Take into account found components in planning run".
I would appreciate if anyone could provide an insight.
Thanks
Sam

Hi Sam,
What you are asking might be resolved with some enhancement. In this case, the location heuristic in interactive planning would take care of components as well.
Is this what you are looking for?
Also one opinion on this - unless this interactive planning is required very frequently, it's advisable not to touch the interactive planning. Your changes could be global (need to check this after finding out a Badi), meaning that whenever network heuristics is run, it would ALWAYS consider components for planning.
PS: Having a different icon is only possible using a macro, which means you create a macro which runs heuristics and also takes care of component level planning. Might be possible, but I would advise against this, as you could possibly have many issues in trying to replicate the standard Heuristics scenario, plus your system performance also could go for a toss.
Thanks - Pawan

Distribution Receipt (Planned) orders w/o source of supply

Hi guys,
How can I get all SNP Distribution Receipt (Planned) orders w/o source of supply in APO?
BR,
Alper

Hi,
You can still create Distribution Receipts (Planned) orders, for this you have to maintain transprotation lane b/w vendor location (soruce) and plant locations (destination). Also you should have maintained the procurement type of the product as 'F' external procurement or 'X' both inhouse/external procurement. To run this create a test scenario by maintaing 2 locations(Vendor and plant location) and a product. Assign the product and locations to active model. Create some forecast using transaction /n/sapapo/rrp3. Enter the product, location(Plant location) and quantity(with negative value). and save. Check the forecast in interactive planning table. Now run the Network heuristics by selecting the vendor, plant location and product. You should be able to see the distribution receipts (PR) created for product.
There is no need for maintain the PDS/PPM as source of supply. Hope this is what you are expecting. If not let me know what actually you are looking for.
Regards
KRN

SNP Heursitic run - Lot size of Purchase Requisitions

Hi,
when we run network Heuristics we get Preqs with decimals. As far as I can see we have maintained the lot size correctly and even the rounding value. Still I get Preqs with 0,054 EA, but I'm expecting to get 1 EA.
Has anyone experienced something similar?
Thanks,
Lars

Thanks for your help, Aparna.
Seems like I forgot to specify that the issue was related to the PReqs in R/3, created by the Heuristic run in APO.
However, I think we found the problem. The rounding value from Material Master was not CIF'ed over til APO. When we maintained the rounding value manually in the product master in APO we got the result we wanted.
Thanks!
Lars

Production recipt generations

While working with a scenario of a SNP model, I have a SNP PPM that has the a input product that is converting into a final product undergoing a polishing resource (single mixed resource). when I am trying to run the network heuristics,I am not being able to generate any production receipt for the final product. I have the input and the final product both assigned to the production location but I am not involving it in the selection when doing the network planning. I have tried choosing the prevention of the explosion of the BOM but have not been able to generate the production receipt.
What is the general setting in relation to the BOM explosion, Please explain the options with a business scenarios.
Thanks in advance

I have one plant and 2 dc and they are being supplied the same product. I have maintained F for the article1-dc and the E for the article1-plant combination.I have a SNP ppm at the plant and the PPM is manufacturing the article1 using an input product article2. I have maintained the article2 at the plant location and not at the dc as it is not being used in the dc. In the sdp94 i have the selection id having the plant and the dc and the article1 and that is what I am loading into the 9ASNP_SSP (safety) data view. when i am running the heuristics (network) then the distribution demand for the plant, distribution reciept for the DC are generated but there is no production reciept generated for the plant. the snp PPM is active but does not have any PPDS ppm linked to it.
What do u think might be the reason for the same.
Thanks in advance

Windows 7 network file transfer absurdly slow

I know there are plenty of other posts about slow network file transfer. Here, elsewhere, I can't say I read them all but most are referring to slow down to 1MB/s.
I am getting <20KB/s.
If I transfer a very small file (less than 100KB) it would start quickly then slow down to <20KB/s. all subsequently network file transfer would be slow, a reboot is needed to reset this. If I transfer a large file it would be stuck on calculating for
a long time and then begin with <20KB/s immediately.
This is a fairly newly built desktop. Realtek gigabit on-board LAN of ASRock Extreme3 gen3. I have tested network file transfer to and from a Windows 7 laptop and a MacBook Pro, so I am fairly certain it is the desktop's problem. The slow speed only happens
with one direction, outbound from the desktop, regardless of whether I initiate the file transfer action from the origin or the destination. Inbound network file transfer and internet speeds are fine, so I don't think this is a hardware issue.
Remote Differential Compression is off. Drivers are up-to-date from ASRock's website. I am getting 74.8MB/s internet upload speed from speedtest.net (http://www.speedtest.net/result/1852752479.png). Inbound network file transfer I can get around 10-15MB/s.
I looked everywhere and can't find symptoms that fits my case well. I'd be cheering if I can get 1MB/s. Well, maybe not, but at this point it is more efficient for me to upload everything to the Internet and download them again than to use local file transfer,
which is just absurd.
I am hoping this community has some insight for me to troubleshoot this. I don't see anything obviously related from the Event Viewer, and beyond that I just don't know where else to look.
Any suggestions are greatly appreciated, thank you in advance.

Hi,
Firstly, would you please try again to install the HotFix instead of disabling TCPAuto-Tuning and Windows Scaling heuristics via netsh manually.
If issue persists, please try following:
1. Test the issue in Safe Mode with Networking.
2. Disable "Large Send Offload".
How to:
1) Open an elevated command prompt and press Enter:
netsh int ip set global taskoffload=disabled.
2) Disable and re-enable the network interface or reboot your system.
3) Run the following command in an elevated command prompt to confirm the command above is successful:
netsh int ip show offload
3. Check the value of “Speed & Duplex” is Auto in Advanced Properties of the NIC. If not, please let us know your value.
4. Check if “Flow Control” is disabled in Advanced Properties of your NIC.
5. Go to your Start Menu, search for “Local Security Policy“ and run it as administrator. Under Security Settings -> Local Policies -> Security Options.
1) Open “Network security:Minimum session security for NTLM SSP (including RPC based) Clients”,
unselect “Require NTLMv2 session security” and “Require 128-bit encryption”.
2) Do the same operation to “Network security:Minimum session security for NTLM SSP (including RPC based) Servers”.
3) Open
the policy “Network Security LAN Manager authentication level“. Locate and select the option “Send LM & NTLM – use NTLMv2 session security if negotiated“. Click Apply, and close out of all
policy management windows.
Hope this helps.
If a post solved your problem, click “Mark as Answer” on the post. If a post helped you, click "Vote As Helpful" on the left side of post.

Deployment Optimizer - Equal weightage for all the locations in the network

Hello All,
I am having difficulty in assigning equal weightage for all the locations in the deployment network. My scenario is as described below:
Deployment Source location: LOC1
Destination locations: LOC2, LOC3
I am running Heuristics to plan LOC2, LOC3 & LOC1, followed by
a Deployment Optimizer run at LOC1 to deploy to LOC2 & LOC3.
ATD quantity at LOC1 is always calculated after saftisfying the requirements at LOC1 and the remainder is deployed to LOC2 & LOC3 based on the cost settings. This seems to be the case even if I don't run the heuristics at LOC1 and start deployment optimizer after running the heuristics at LOC2 and LOC3.
The need at this client place is that all three locations are equally important even though LOC1 is the only deploying source location.
This applies for all demand categories i.e. Sales orders, Forecast and forecast at all the three locations.
I would appreciate if anybody has done this kind of configuration before and let me know how to model this.
Thanks,
Venkat

Have you follow all this checking ?
If you think that you already follow all the steps, but the value is not as per your config, you can raise ticket to SAP about it.
But I suggest you to double check your computation.
To determine a vendor's price level, the system compares the vendor's effective price with the market price for the material.
   1. The system first checks whether the buyer has maintained a market price for the material or the material group.
   2. If not, the system calculates the market price which is equal to the average of the effective prices for all vendors supplying this material. Prices from purchase orders and prices for subcontracting are dealt with separately.
   3. The system then applies the effective price for the vendor from the conditions.
   4. The vendor's effective price is then compared with the market price and the percentage variance determined.
   5. The system then assigns a score to the variance in accordance with the settings made in Customizing.
   6. This score is valid for the material, that is, at info record level. Since the score the vendor receives for a subcriterion is based not on an individual material, but on the total of all the materials he supplies, the following steps are necessary:
   7. The system repeats the comparison between effective price and market price for each of the vendor's materials.
   8. The system calculates an average from the sum of the scores determined. This average represents the vendor's score for the subcriterion Price Level.
Edited by: w1n on Apr 19, 2010 2:35 PM

Use of SNP Heuristics & Optimizer

Folks,
Has anyone used both Heuristics and Optimizer together within the same supply network?
If so then how was this used e.g. Network optimization on monthly basis and location heuristics on weekly basis. Idea is to come up with a monthly optimum sourcing plan using optimizer and then resolve any location specific capacity issues using heuristics on a weekly basis.
Is this a feasible solution?

Hi,
We are using both SNP Heuristics as well as Optimizer. SNP heuristic is not considering the Constraints, thats why it is required to be run where the demand and supply can be linked without any constraint. As in our case, we are doing it between Customer and C&F. For rest of the network, we are running Optimizer as several constraints are involved in different Supply chain nodes, like transportation capacity, production capacity, storage cost etc...
We are running Optimizer on the whole network successfully which gives the results on a daily bucket considering various constraints.
In your case, you can run Optimizer alone as it will consider the location specific capacities.
Regards,
Manjit

PPDS and SNP Heuristics

Hi All,
can anyone please let me know, what exactly is the difference between SNP and PPDS Heu. ???
Thanks in advance,
Prasad.

Hi Prasad,
1) SNP heuristic:-
The heuristic is used as part of a repair-based planning process consisting of the heuristic, capacity leveling, and deployment. The heuristic run processes each planning location sequentially and determines sourcing requirements. The heuristic processing groups all demands for a given product at a location into one demand for the bucket. The heuristic run determines valid sources of supply and corresponding quantity based on pre-defined percentages for each source of supply (quota arrangements), or procurement priorities for transportation lanes and production process models (PPMs) or production data structures (PDS). The demands are then passed through the supply chain to calculate a plan. However, this plan is not necessarily feasible. The planner can then use capacity leveling to adjust the plan and formulate a feasible plan.
2) PPDS Heuristic:-
We run ppds heuristic to create procurement proposals for uncovered product requirements and to To carry out other planning tasks for products or orders.
In PP/DS, a heuristic is a planning function that executes planning for selected objects (products, resources, operations, or line networks, depending on the planning focus). The heuristic does this using a particular heuristic-specific procedure.
there are heuristics with which you can execute multilevel planning according to low-level codes for selected products, or with which you can schedule operations on selected resources in a specific sequence.
Regards
R. Senthil Mareeswaran.

Slow network browsing (at times)

Hi all: Ever since we installed our new servers (January-February) we have been experiencing slow network performance. We currently run OES11 SP2 servers and use Novell Client 2 SP3 for Windows 7 (IR9 and 10) on Windows 7 64-bit workstations. We also use ZCM 11 SP3 clients. All our workstations are members of the same domain (functional level 2008 R2).
Here is what I observe. Right after completing a successful login access to any OES server takes 2-3 seconds for the directory list to display. Once one server has been accessed we do not see the delay to other OES server. Browsing and access to the domain servers seems unaffected. But after a few minutes and symptoms return. I have tried various remedies detailed in a few TIDS and Cool solutions but none seem to help. I have elevated the Novell network providers to the top of the provider list. Wireshark captures don't show any smoking guns.
Suggestions? Thanks, Chris.

Originally Posted by laurabuckley
Hi Chris,
A while ago I had similar issues. I made a few changes to the Windows 7 workstations and the situation greatly improved.
The first thing that I recommend you do is turn off Autotuning.
From an elevated command prompt on the workstation: netsh interface tcp set global autotuninglevel=disabled
The second thing that I recommend you do is turn off Remote Differential Compression.
From an elevated command prompt on the workstation: Netsh interface tcp set global rss=disabled
I would suggest that you try this just on one or two workstations first and see if the situation improves.
Please do let us know how it goes.
Cheers,
I may be wrong here but I just want to clarify:
From an elevated command prompt on the workstation: Netsh interface tcp set global rss=disabled
I believe this Disables Receive side scaling, not Remote Differential Compression.
To disable Remote Differential Compression you can either remove it through the "Windows Components" in Add/Remove or Run:
ocsetup MSRDC-Infrastructure /uninstall
Along with the above I run the following in a Run Once Bundle on all machines:
netsh.exe int ip set global taskoffload=disabled
netsh.exe interface tcp set global autotuning=disabled
netsh.exe interface tcp set global rss=disabled
netsh.exe int tcp set heuristics disabled

Difference between SNP heuristics,Optimizer and CTM

Dear Friends,
can any one explain me what are the basic difference in SNP planning methods
1) SNP heuristics
2)Optimzer
3)CTM
when should we use these method in SNP , is all the methods are used in SNP impelemtation ?
just give me some idea about it
Thanks & Regards
Raj

Hi Rajkumar,
                  Please find the difference among three
Comparison of the Planning Methods
you use optimization-based planning or CTM planning if one of the following conditions applies to you:
·        Your business environment is subject to strict constraints (for example, you must take into account production capacities, transportation capacities, storage capacities, and/or handling capacities)
·        You have alternative production locations and sources of supply (locations, production process models, and external procurement relationships)
·        You can decide between early production and late production
·        You share resources, meaning that multiple products are produced simultaneously on the one resource
We recommend that you use heuristic-based planning or CTM planning if any of the following conditions apply:
·        You wish to plan on an infinite basis (meaning that you do not wish to consider capacities) for the medium to long-term horizon (heuristic).
·        You wish to take into account predefined quota arrangements; for sources of supply, for instance (heuristic or CTM).
·        You wish to plan or fulfill demands on the basis of priorities (CTM).
Optimization-Based Planning :
http://help.sap.com/saphelp_scm2007/helpdata/en/09/707b37db6bcd66e10000009b38f889/content.htm
The SNP optimizer offers cost-based planning. This means that it searches through all feasible plans in an attempt to find the most cost-effective (in terms of total costs). Total costs refers to the following:
·        Production, procurement, storage, and transportation costs
·        Costs for increasing the production capacity, storage capacity, transportation capacity, and handling capacity
·        Costs for violating (falling below) the safety stock level
·        Costs for late delivery
·        Stockout costs
Heuristic-Based Planning
http://help.sap.com/saphelp_scm2007/helpdata/en/a1/b60b4b2fc211d3b6270000e82de178/content.htm
The heuristic is used as part of a repair-based planning process consisting of the heuristic, capacity leveling, and deployment. The heuristic run processes each planning location sequentially and determines sourcing requirements. The heuristic processing groups all demands for a given product at a location into one demand for the bucket. The heuristic run determines valid sources of supply and corresponding quantity based on pre-defined percentages for each source of supply (quota arrangements), or procurement priorities for transportation lanes and production process models (PPMs) or production data structures (PDS). The demands are then passed through the supply chain to calculate a plan. However, this plan is not necessarily feasible. The planner can then use capacity leveling to adjust the plan and formulate a feasible plan.
Capable-to-Match (CTM)
http://help.sap.com/saphelp_scm2007/helpdata/en/c4/986c39b768ca2fe10000000a114084/frameset.htm
With this function, you can execute a multi-level, finite planning of the demands in your supply chain. Unlike the Supply Network Planning (SNP) optimizer that executes cost-based planning, CTM planning uses a heuristic procedure. In other words, CTM does not optimize the costs. Instead, you can use priorities, for example, to influence the sequence of demands and the selection of the procurement alternatives. CTM planning does not consider the individual production and distribution levels one after the other, such as the classic MRP run, but considers them at the same time. This guarantees that CTM planning generates a plan that can be executed on schedule.
Hope these details will resolve your queries
Regards,
Santosh Kumar Mishra

Difference between SNP Heuristics and PP/DS Heuristics

Dear Friends,
I have a basic question regarding Heuristics , is SNP Heuristics and PP/DS Heuristics are same
if not what is the key difference between them
i am very clear about PP/DS heuristics but not sure how heuristics is used for planning in SNP , i am able to read sap help , but could not able to get clear answer
Please help
Thanks & Regards
Raj

Hi Raj,
Heuristics is the simple algorithm which can be attached to any working
module to perform our business requirements.
PPDS Heuristics is used to create procurement proposals for uncovered product requirements
and to carry out planning tasks for products or orders.
This will be used during Production planning run and in interactive planning.
whereas
SNP heuristic is used during capacity levelling and deployment. The SNP Heuristic performs
requirements planning through the entire supply chain network to determine how to satisfy
the customer and/or consumer demand.
SNP heuristic, based on a repair-based planning approach, efficiently plans complex distribution
networks in multi-site production environments.
Regards
R. Senthil Mareeswaran.

Reorder Point Planning via SNP heuristics based on ACTUAL stock

Hi All,
In R/3 there is the option in reorder point planning to take into account external requirements (MRP type V1) or not to take into account external requirements (VB). When using reorder point planning in APO SNP Heuristics, the reorder point is being determined in time based on the PROJECTED stock (so taking into account external requirements) so the result is the same as in R/3 when using MRP type V1. In the future horizon, everytime the projected stock goes below the reorder point, a replenishment is triggerd via a planned order or purchase requisition.
I would like to know if (and how) it is possible to perform reorder point planning in APO SNP via heuristics (can be location or network) only taking into account the ACTUAL stock (and no external requirements in the past or in the future). So, the same behavior as the MRP type VB in R/3. The difference is that only on the short term, 1 time replenishment is triggered (via planned order or purchase requisition) if the current stock is below the reorder point.
Remarks: this needs to be able to be set product specific, because not all products at the location will need to use this logic.
Any help or thoughts for a solution direction (preferably without programming or user exits) are appreciated.
Thanks in advance,
Dennis

If you really just want a pure re-order point scenario based on current stock, I'd suppose that you'd want to create a new data view and modify the total demand macro so that it doesn't generate any sort of future requirements (total demand will essentially be zero). Then the reorder point will be the only thing driving planning when compared to the initial bucket SOH, which is presumably calculated through the standard macro and according to the stock cat. group you indicate in the location/product master.
You could set some specific filter in the material master using the MATLOC freely definable attributes to create selection profiles and govern in which data view you process the planning for certain materials. That is to say, you'd assign all materials which are pure current stock ROP and tag them with some attribute and use that to create selections for your Heuristic variants.

Network Heuristics

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