diff --git a/dev-docs/bidders/adf.md b/dev-docs/bidders/adf.md
index c0d2d9ef72..34f70931ed 100644
--- a/dev-docs/bidders/adf.md
+++ b/dev-docs/bidders/adf.md
@@ -1,7 +1,7 @@
 ---
 layout: bidder
 title: AdformOpenRTB
-description: Prebid Adf Bidder Adaptor
+description: Prebid Adform Bidder Adaptor
 biddercode: adf
 media_types: banner, native, video
 gdpr_supported: true
@@ -38,3 +38,7 @@ pbjs.setConfig({
   }
 });
 ```
+
+### Multi-format ads
+
+Adform bid adapter does not support multi-format ad unit setup. Please use [twin ad unit codes]({{site.baseurl}}/dev-docs/adunit-reference.html#twin-adunit-codes) to enable multi-format auctions.
diff --git a/dev-docs/bidders/adform.md b/dev-docs/bidders/adform.md
index 51bc8f5ac0..1e1375e21e 100644
--- a/dev-docs/bidders/adform.md
+++ b/dev-docs/bidders/adform.md
@@ -13,6 +13,7 @@ userIds: britepoolId, criteo, id5Id, identityLink, liveIntentId, netId, parrable
 gvl_id: 50
 ---
 
+**Adform bid adapter is deprecated since Prebid 5.0. Please refer to [AdformOpenRTB adapter](#adf) documentation to fetch bids from Adform demand sources.**
 
 ### Bid Params