SRM 5.0 with Heiler Business Catalog

We have a requirment

Business Catalogis needs to be enhanced to allow different pricing to be displayed for each region/plant during creation of shopping cart. To allow users accessing the eCatalogue through SRM to view the relevant pricing, their region/plant needs to be passed through the OCI interface to the eCatalogue.

Technically we are using standard call structure for call WEB catalog

10https://emp.smartbuy.nsw.gov.au/is-bin/INTERSHOP.enfinity/WFS/MarketSite/en_AU/-/AUD/OCICatalogService-Inbound URL

20 USERNAME EXTERNALBUYER Fixed Value

30 PASSWORD WINTER Fixed Value

40 SERVICE DETSTATEOFFICE2 Fixed Value

50 ~OkCode ADDI Fixed Value

60 ~target _top Fixed Value

70 ~caller CTLG Fixed Value

80 HOOK_URL Return URL

kindly guide me about OCI configutaion and relevent changes in catalogs to pursue with above changes.

Regards

Dayal