Pass Logon Language dynamically to Receiver RFC-Channel

Hi experts,

is it possible to change or overwritte the Logon Language of the receiver RFC-channel:

We have several BAPI-Calls implemented we the result has to be language depentend. So e.g. if the request is coming from spanish user, the BAPI should return the message in spanish. When you logon to the ERP-System with ES as language you can achieve this behaviour. How can this be done by usein this rfc-channel that has the Logon Language hard-coded to "DE"?

regards

Christian