Question regarding proxies

Hi All,

Im trying to connect SAP r/3(ECD) with XI usingf client proxy.

SAP(proxy) -

> XI -

> File

I have 2 clients on my SAP system, 1 is 120 which is the developemt client which has no data, and client 135 which is testing client in which we cant do any development but have all the data in it.

Now i generally use 135 client in all IDOC scenarios... but proxy is client dependent isnt it...?

should i create a proxy for 120 and another for 135?