EAM DB Standard API - Create Work Request - Not working from POSTMAN

Dear Experts,

Seeking support on below line.

EAM DB Standard API - Create Work Request - Not working from REST API & POST MAN

Details - Called this wip_eam_workrequest_pub.work_request_import - DB API through custom package, its working fine from if we run with proper pl/sql script.

Issue : When i registered this customer package through Integrated SOA Gateway responsibility all functions are working fine, except this procedure.

NOTE: usually it will create the SOA API will call it through postman, so far all developed DB objects are working fine, except this DB API.

Why this only package.procedure is not working, from postman not getting any error message from.