diff --git a/src/main/java/com/authlete/common/dto/TokenRevokeRequest.java b/src/main/java/com/authlete/common/dto/TokenRevokeRequest.java
index a5ed98fde..2bf60293b 100644
--- a/src/main/java/com/authlete/common/dto/TokenRevokeRequest.java
+++ b/src/main/java/com/authlete/common/dto/TokenRevokeRequest.java
@@ -79,6 +79,14 @@
  * the API returns {@code 400 Bad Request}.
  * </p>
  * </ol>
+ * 
+ * <p>
+ * Bulk revocation with {@code clientIdentifier} only, {@code clientIdentifier} + {@code subject}, 
+ * or {@code subject} only deletes at most {@code 20 tokens per request}
+ * (the default of {@code token.revoke.count.max} in {@code ServerConfiguration.java}). If the
+ * target has more than 20 tokens, the response {@code count} will be 20 and the remainder 
+ * is left untouched. To fully wipe them, call the endpoint repeatedly until {@code count} returns 0.
+ * </p>
  *
  * @since 3.26
  * @since Authlete 2.2.29
diff --git a/src/main/java/com/authlete/common/dto/TokenRevokeResponse.java b/src/main/java/com/authlete/common/dto/TokenRevokeResponse.java
index 3286520b2..513aeae87 100644
--- a/src/main/java/com/authlete/common/dto/TokenRevokeResponse.java
+++ b/src/main/java/com/authlete/common/dto/TokenRevokeResponse.java
@@ -26,12 +26,19 @@ public class TokenRevokeResponse extends ApiResponse
 {
     private static final long serialVersionUID = 1L;
 
-
+    /**
+     * If the
+     * target has more than 20 tokens, the response {@code count} will be 20 and the remainder 
+     * is left untouched. To fully wipe them, call the endpoint repeatedly until {@code count} returns 0.
+     */
     private int count;
 
 
     /**
      * Get the number of revoked tokens.
+     * If the
+     * target has more than 20 tokens, the response {@code count} will be 20 and the remainder 
+     * is left untouched. To fully wipe them, call the endpoint repeatedly until {@code count} returns 0.
      *
      * @return
      *         The number of revoked tokens.
@@ -44,6 +51,9 @@ public int getCount()
 
     /**
      * Set the number of revoked tokens.
+     * If the
+     * target has more than 20 tokens, the response {@code count} will be 20 and the remainder 
+     * is left untouched. To fully wipe them, call the endpoint repeatedly until {@code count} returns 0.
      *
      * @param count
      *         The number of revoked tokens.