diff --git a/src/OpenIddict/OpenIddictExtensions.cs b/src/OpenIddict/OpenIddictExtensions.cs
index 659b7c87..87bdefb3 100644
--- a/src/OpenIddict/OpenIddictExtensions.cs
+++ b/src/OpenIddict/OpenIddictExtensions.cs
@@ -547,8 +547,9 @@ namespace Microsoft.AspNetCore.Builder
         }
 
         /// <summary>
-        /// Disables sliding expiration, which prevents OpenIddict from issuing a new
-        /// refresh token when receiving a grant_type=refresh_token token request.
+        /// Disables sliding expiration. When using this option, a single refresh token
+        /// is issued with a fixed expiration date: when it expires, a complete
+        /// authorization flow must be started to retrieve a new refresh token.
         /// </summary>
         /// <param name="builder">The services builder used by OpenIddict to register new services.</param>
         /// <returns>The <see cref="OpenIddictBuilder"/>.</returns>
@@ -928,6 +929,7 @@ namespace Microsoft.AspNetCore.Builder
 
         /// <summary>
         /// Sets JWT as the default token format for access tokens.
+        /// Note: this option cannot be used when using reference tokens.
         /// </summary>
         /// <param name="builder">The services builder used by OpenIddict to register new services.</param>
         /// <returns>The <see cref="OpenIddictBuilder"/>.</returns>
@@ -974,6 +976,7 @@ namespace Microsoft.AspNetCore.Builder
         /// a new refresh token is issued for each refresh token request and the previous one
         /// is automatically revoked (when disabled, no new refresh token is issued and the
         /// lifetime of the original refresh token is increased by updating the database entry).
+        /// Note: this option cannot be used when manually disabling sliding expiration.
         /// </summary>
         /// <param name="builder">The services builder used by OpenIddict to register new services.</param>
         /// <returns>The <see cref="OpenIddictBuilder"/>.</returns>