Should I have one JCo connection per RFC model?

Hello SDN,
I got a JCo doubt.
Should I have one JCo connection per RFC model in a DC? or Can I have the same JCo connection for several models in such Web Dynpro Development Component?
I will appreciate any help.
Thank you.

Hi Gustavo,
Ideally, we use one JCo connection for all the models in all the DC's in a big project.
If you see the SAP delivered XSS/ESS/MSS solutions they are also using one JCO (SAP_R3_Human_Resources) for all the dc's in one solution.
Suppose you are not using SSO and you have different models with different JCO, now if you want to change the backend client, you have to change all the JCO connections.
So having one JCO, helps easy maintenance of connections across different applications in a big project/solution.
Regards,
Shubham

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