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Upgrade from CRM 2.0c to CRM 4 - Initial Study

Hi All,

Our client wants to upgrade CRM 2.0C to CRM 4.0. It only uses the Internet Sales Module. We use ITS for Internet Sales.

Please help me in following queries ..

1. Is it mandatory to upgrade CRM 2.0 to CRM 3.0 and then to CRM 4.0? Can we bypass the CRM 3.0, in any case at all?

2. Will CRM 4.0 only be possible as a direct re-build, as we have to do away with ITS , and deploy and modify the JSP pages using SAP Java Server?

3. As CRM 2.0 runs on Win NT, and CRM 4.0 is only possible on Win 2000 Server, will there be any compatibility issues if we are going to upgrade?

4. Or, a complete installation of new components of CRM Server, IPC, TREX, and SAP Java Server will Web Components is only possible? If so, the old data should be migrated to new system.

5. What are the issues with data migration, if any?

6. Is EP mandatory for Internet Sales, as documentation says that web shop and other transactions in SAP are not supported, and should be run through Portal?

Please don't mind my elaborate list of questions. But it took, couple of weeks to go through all the documentation in Market Place and come up with this clarity.

Your answers will help me a lot, in fact, I can only build my estimate and design the solution only based on the clarity provided by you.

Any relevant documentation both in terms of design, estimate ( efforts and costs ) is highly appreciated, and will be highly helpful. Can be sent to


Anil Santhapuri

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  • Posted on Dec 02, 2005 at 09:12 PM


    Your question list is actually great. I think I can answer you having implementing Internet Sales 2.0C and moving on forward to future releases of CRM.

    1. According to the upgrade guides you need to perform the technical upgrades from 2.0C to 3.0 and then to 4.0. The documentation for CRM 5.0 upgrade planning shows this path to go from CRM 2.0C to CRM 5.0.

    2. Yes you must throw away all your custom ITS templates and rebuild the customization in the java internet sales from scratch. Any ABAP code you may have written, may or may not be migratable. There is a big difference between some "internals" between even 2.0C and 3.0 so your code will probably break.

    3. Unfortuantely here you should run CRM on a SAP supported OS. In other words you will probably need to upgrade your OS and Database in order to upgrade CRM.

    4. If you want to do a start from scratch install of CRM it would be possible. The only issues about data migration is that 2.0C is a pain to extract data from. I would probably just recommend an upgrade of the CRM Server, and then reinstall all the other components(IPC, TREX, Java Web).

    5. SAP delivers migration tools as part of the upgrade. In general the standard database schema for online has only been enhanced. There are some areas in the parts of attribute settings in products and marketing that need migration.

    6. Internet Sales can be ran stand alone if desired. You can run almost all of CRM without the portal, even PCUI applications. However you don't get the full functionality of some applications without the portal being installed.

    Figure that you will spend about the same amount of time as your original installation for the internet sales piece being reimplemented to get the webui. I would guess that a project of this magnitude depending on customization would take a minimum of six months to complete. You will need at least one basis resource, one ABAP developer, one java developer, one configuration specialist, and one middleware specialist to handle this upgrade.

    Hardware costs will involve additional boxes to house the upgrade landscape, along with replacement/resizing of the production landscape.

    Depending on how customized your 2.0C environment is, this could go from a "straightfoward" to "complicated mess" upgrade.

    I would strongly recommend getting an experienced SAP internet sales consultant(who has worked on 2.0C & 4.0) to evaluate your upgrade. I realize this may be an expensive initial cost but will save money in the long run.

    Good luck,


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    • Anil,

      Honestly I can't answer your last question about the OS issues during the upgrade. The only thoughts I can offer to get more information would be to download the upgrade install guides from, to see how SAP sequences these steps. I personally don't believe there would be any issues to the data. The database upgrade required for the new version would have the most impact on the data stored in your system, whereas the OS upgrade should only impact whether you can bring up the SAP executables.

      Personally the downside to the data migration to a fresh build is the middleware setup between CRM & ERP. You would have to handle the complexity of deconnecting the ERP client from CRM old to a new CRM and then work on building extractors for all the old data out of CRM old and then loading into CRM new. I think a strict technical upgrade in the long run, will result in a lot less conversion development.

      Good luck,


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