Updated documentaion to reflect adapter changes. (#6475)

Co-authored-by: oskarcokl <oskar.cokl@iprom.si>

Author: iprom-adserver

dev-docs/bidders/iprom.md

@@ -1,22 +1,48 @@
 ---
 layout: bidder
 title: iPROM
-description: iPROM Prebid Adaptor
+description: iPROM Prebid Adapter
 biddercode: iprom
 media_types: banner
 pbjs: true
+pbs: false
+gvl_id: 811
+tcfeu_supported: true
+usp_supported: false
+dsa_supported: false
+coppa_supported: false
+gpp_sids: none
+schain_supported: true
+dchain_supported: false
+userId: none
 enable_download: true
+safeframes_ok: false
+deals_supported: false
+floors_supported: false
+fpd_supported: true
+prebid_member: false
+ortb_blocking_supported: false
+privacy_sandbox: no
 sidebarType: 1
 ---
 
-### Prebid Server Note
+## Prebid Server Note
 
 For registration with our bidder please see our website at [www.iprom.eu](https://www.iprom.eu) or contact us at <support@iprom.si>.
 
-### Bid Params
+## First Party Data
+
+iPROM supports first-party data (`ortb2`) and SupplyChain (`schain`) objects.
+In legacy mode, `schain` is sent separately and the remaining `ortb2` data is passed as `firstPartyData`.
+In ORTB mode, the adapter builds an OpenRTB request from the available Prebid request data.
+
+## Bid Params
 
 {: .table .table-bordered .table-striped }
-| Name        | Scope    | Description                    | Example | Type      |
-|-------------|----------|--------------------------------|---------|-----------|
-| `id`        | required | The site ID from iPROM.        | '1234'    | string    |
-| `dimension` | required | iPROM specific bidding zone.   | '300x250' | string    |
+
+| Name        | Scope    | Description                                                                   | Example                                 | Type    |
+|-------------|----------|-------------------------------------------------------------------------------|-----------------------------------------|---------|
+| `id`        | required | The site ID from iPROM.                                                       | `'1234'`                                | string  |
+| `dimension` | optional | iPROM-specific bidding zone. Comma-separated if multiple values are provided. | `'300x250'`                             | string  |
+| `endpoint`  | optional | A different HTTPS endpoint to use for bid responses.                          | `'https://core.iprom.net/programmatic'` | string  |
+| `ortb`      | optional | Whether the request payload should be constructed using the OpenRTB format.   | `true`                                  | boolean |