Access data from 2 SAP systems into WebDynpro..Please guide :)

[Former Member]

Hello,

Is is possible to access/retrieve data from 2 seperate SAP systems in Web Dynpro?

To ellaborate more:

Under normal situation - We create a Model using which you can access the required BAPI/RFC and using the JCo this connection is complete.

So, in the SLD there is one JCo connection/object for this model.

Now as per my quesry, I want to access data from 2 systems... like CRM & R/3.

So how can I do this:

1. Create 2 seperate model objects and then do Model Context Mapping. If this is rite, then I will have to create 2 JCo connections in SLD.

2. Is is possibe that under one model (example this model is accessing R/3), I need to access data from CRM <i><b>without creatiing another model</b></i>. So that are the possiblities? Secondly is this way/path recommended?If no, how should I proceed.

Hope my requirements are clear

Awaiting Reply.

Thanks & Warm Regards,

Ritu

[former_member185029 · Accepted solution]

Ritu,

There is no way you can create single model for 2 different R/3 systems (unless SAP decides to implement this in later versions).

If you still want to stick with a single model approach, I would suggest to use <b>Webservice</b> model where the R/3 interaction part would be taken care by WebService.

Ashutosh

[roberto_tagliento]

It is reccomended to USE one MODEL for each BACKEND system!

Each system need a configuration to SLD, with different address and connection, different way (street) of connection, so DISTINCT JCO.

[roberto_tagliento]

You cannot have one MODEL for distinct system, it's impossible.

By the way alot of people do the error (or get the choice) to have ONE MODEL for EACH RFC/BAPI!!!

[roberto_tagliento]

I guess this because, they look inside ESS standard, where i don't know SAP use one model for each RFC (someone tell me this, i never seen this standard), but in alot of SAP docs i read the rule one model for each backend system.

[monalisa_biswal]

We need to have two different models for two separate SAP systems.Because we can have only one JCO connection per each model.