diff --git a/CHANGELOG.md b/CHANGELOG.md
index e9a4ddb..4868a1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+### Added
+- Default value of `false` for `c3.ad.isSlate` for client side ad insertion per Conviva Custom Ad Manager integration docs
+
 ## 2.7.1 - 2024-09-24
 ### Fixed
 - Reporting wrong ad position for mid-roll VMAP ads
diff --git a/conviva/src/main/java/com/bitmovin/analytics/conviva/ConvivaAnalyticsIntegration.java b/conviva/src/main/java/com/bitmovin/analytics/conviva/ConvivaAnalyticsIntegration.java
index 049638a..32bf5d1 100644
--- a/conviva/src/main/java/com/bitmovin/analytics/conviva/ConvivaAnalyticsIntegration.java
+++ b/conviva/src/main/java/com/bitmovin/analytics/conviva/ConvivaAnalyticsIntegration.java
@@ -794,6 +794,9 @@ private Map<String, Object> adStartedToAdInfo(PlayerEvent.AdStarted adStartedEve
             adInfo.put(ConvivaSdkConstants.FRAMEWORK_VERSION, Player.getSdkVersion());
         }
 
+        // default value for isSlate is false for Custom Ad Manager integration
+        adInfo.put("c3.ad.isSlate", "false");
+
         double scheduleTime;
         if (activeAdBreak != null) {
             scheduleTime = activeAdBreak.getScheduleTime();