diff --git a/telephony/java/android/telephony/euicc/EuiccManager.java b/telephony/java/android/telephony/euicc/EuiccManager.java
index bac8c032f1c31..c1037bb20bc48 100644
--- a/telephony/java/android/telephony/euicc/EuiccManager.java
+++ b/telephony/java/android/telephony/euicc/EuiccManager.java
@@ -273,6 +273,8 @@ public class EuiccManager {
      * {@link #ACTION_DELETE_SUBSCRIPTION_PRIVILEGED}, and
      * {@link #ACTION_RENAME_SUBSCRIPTION_PRIVILEGED} providing the ID of the targeted subscription.
      *
+     * <p>Expected type of the extra data: int
+     *
      * @hide
      */
     @SystemApi
@@ -283,6 +285,8 @@ public class EuiccManager {
      * Key for an extra set on {@link #ACTION_TOGGLE_SUBSCRIPTION_PRIVILEGED} providing a boolean
      * value of whether to enable or disable the targeted subscription.
      *
+     * <p>Expected type of the extra data: boolean
+     *
      * @hide
      */
     @SystemApi
@@ -293,6 +297,8 @@ public class EuiccManager {
      * Key for an extra set on {@link #ACTION_RENAME_SUBSCRIPTION_PRIVILEGED} providing a new
      * nickname for the targeted subscription.
      *
+     * <p>Expected type of the extra data: String
+     *
      * @hide
      */
     @SystemApi