E-commerce with CRM or R/3 back end ?

hi all,
we are going to implement E-commerce and create a web shop with a SAP back-end.
We are in doubt whether to use CRM or R/3 as back-end system. Does anyone have experience with pros and cons ?
We already use both CRM (4.0) and R/3 today.
looking forward to hear from you,
best regards
Annette

Hello Annette,
Please see for yourself the gap list between ISA R/3 and CRM-ISA in these consulting SAP Notes.
[Note 609722 - Gap list Internet Sales R/3 Edition 3.1|https://service.sap.com/sap/support/notes/609722]
[Note 638786 - Gap list Internet Sales (R/3 Edition) 4.0|https://service.sap.com/sap/support/notes/638786]
[Note 897680 - Gap list SAP E-Commerce for mySAP ERP (5.0)|https://service.sap.com/sap/support/notes/897680]
The notes provide a progression of gaps cleared in the ISA for R/3 (E-Commerce ERP) version.
While the list gives you a gap of features in the browser UI, you must also make a list of what R/3 Sales can do that CRM Sales cannot do. The CRM-ISA sales process is solely dependent on the CRM Sales process and its limitations. The list is beyond the scope of this thread. Anyway, since you already have CRM and R/3, you know the differences.
If you are planning to go big on the full features of the E-Commerce application - including self service, marketing, then, plan for CRM-ISA.
The major investment of effort has to be planned for (1) middleware integration - which you already have and (2) IPC - I am not sure if you already have done work on this piece. If you have done so already, then, you better go for CRM-ISA. Gives you a better user experience.
If you are looking for low hanging fruits and quick ROI - say B2B scenario, order status, do it with R/3.
Easwar Ram
http://www.parxlns.com

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