How to derive Responsibility ID on the basis of ORG_ID

Hi All,

I came across a scenario that I will integrate the invoices from web interface to Oracle Payables using SOA services. In my data I will be having Operating unit name from there I will derive the ORG_IG for particular invoices.

Now here what I required is to call Payables Open Interface Import Program from correct apps initialization parameters, so from ORG_ID how I will be able to derive or figure out from which responsibility I need to call/initialize the apps.

User ID I can use 0 as sysadmin

Responsibility APPL ID I can use 200 as SQLAP