Passing Language with country to Application Integrator iview

Hi,

I am trying to pass Language to an Application configured using Application Integrator iview on SAP Portal 7.4.

I am currently using parameter language=<Request.Language> defined in URL template property of iview, this works great for 2 character languages. (such as - EN,FR,ZH)

when i try to change language using personalization or try assigning Language in user administration->General Information->Language it works only for 2 character language (such as - EN,FR,ZH), if try selecting ZH_CH or ZH_HK or ZH_TW this is interpreted as ZH by <Request.Language> parameter.

Issue here is end users will be using language "ZH_CH" (mainland China) but <Request.Language> passes language as "ZH" to application

if application is launched with hardcoded parameter language=ZH_CH it works as expected.

Thanks