Listed below is a sample call to FND_GLOBAL.APPS_INITIALIZE function
l_user_id is the fnd user ID which will be utilized during the call.
l_resp_id is the responsibility ID
l_resp_appl_id is the responsibility application ID.
You can use either sysadmin or use some user who has all the above listed responsibilities.
For SYSADMIN, utilize the following query to get the respective values
select fnd.user_id ,
from fnd_user fnd
, fnd_responsibility_tl fresp
where fnd.user_name = ‘SYSADMIN’
and fresp.responsibility_name = ‘Order Management Super User’;
Another option is Help > Diagnostics > Examine and get the values from $profile session values.