diff --git a/src/Discord.Net.Core/DiscordErrorCode.cs b/src/Discord.Net.Core/DiscordErrorCode.cs
index b444614e4..262252eab 100644
--- a/src/Discord.Net.Core/DiscordErrorCode.cs
+++ b/src/Discord.Net.Core/DiscordErrorCode.cs
@@ -66,6 +66,7 @@ namespace Discord
         ActionSlowmode = 20016,
         OnlyOwnerAction = 20018,
         AnnouncementEditRatelimit = 20022,
+        UnderMinimumAge = 20024,
         ChannelWriteRatelimit = 20028,
         WriteRatelimitReached = 20029,
         WordsNotAllowed = 20031,
@@ -88,7 +89,9 @@ namespace Discord
         MaximumServerMembersReached = 30019,
         MaximumServerCategoriesReached = 30030,
         GuildTemplateAlreadyExists = 30031,
+        MaximumNumberOfApplicationCommandsReached = 30032,
         MaximumThreadMembersReached = 30033,
+        MaxNumberOfDailyApplicationCommandCreatesHasBeenReached = 30034,
         MaximumBansForNonGuildMembersReached = 30035,
         MaximumBanFetchesReached = 30037,
         MaximumUncompleteGuildScheduledEvents = 30038,
@@ -98,6 +101,7 @@ namespace Discord
         #endregion
 
         #region General Request Errors (40XXX)
+        BitrateIsTooHighForChannelOfThisType = 30052,
         MaximumNumberOfEditsReached = 30046,
         MaximumNumberOfPinnedThreadsInAForumChannelReached = 30047,
         MaximumNumberOfTagsInAForumChannelReached = 30048,
@@ -108,12 +112,17 @@ namespace Discord
         RequestEntityTooLarge = 40005,
         FeatureDisabled = 40006,
         UserBanned = 40007,
+        ConnectionHasBeenRevoked = 40012,
         TargetUserNotInVoice = 40032,
         MessageAlreadyCrossposted = 40033,
         ApplicationNameAlreadyExists = 40041,
         #endregion
 
         #region Action Preconditions/Checks (50XXX)
+        ApplicationInteractionFailedToSend = 40043,
+        CannotSendAMessageInAForumChannel = 40058,
+        ThereAreNoTagsAvailableThatCanBeSetByNonModerators = 40066,
+        ATagIsRequiredToCreateAForumPostInThisChannel = 40067,
         InteractionHasAlreadyBeenAcknowledged = 40060,
         TagNamesMustBeUnique = 40061,
         MissingPermissions = 50001,
@@ -132,6 +141,7 @@ namespace Discord
         InvalidAuthenticationToken = 50014,
         NoteTooLong = 50015,
         ProvidedMessageDeleteCountOutOfBounds = 50016,
+        InvalidMFALevel = 50017,
         InvalidPinChannel = 50019,
         InvalidInvite = 50020,
         CannotExecuteOnSystemMessage = 50021,
@@ -165,6 +175,9 @@ namespace Discord
         #endregion
 
         #region 2FA (60XXX)
+        OwnershipCannotBeTransferredToABotUser = 50132,
+        AssetResizeBelowTheMaximumSize= 50138,
+        UploadedFileNotFound = 50146,
         MissingPermissionToSendThisSticker = 50600,
         Requires2FA = 60003,
         #endregion
@@ -178,6 +191,7 @@ namespace Discord
         #endregion
 
         #region API Status (130XXX)
+        ApplicationNotYetAvailable = 110001,
         APIOverloaded = 130000,
         #endregion
 
@@ -207,5 +221,15 @@ namespace Discord
         CannotUpdateFinishedEvent = 180000,
         FailedStageCreation = 180002,
         #endregion
+     
+        #region Forum & Automod
+        MessageWasBlockedByAutomaticModeration = 200000,
+        TitleWasBlockedByAutomaticModeration = 200001,
+        WebhooksPostedToForumChannelsMustHaveAThreadNameOrThreadId = 220001,
+        WebhooksPostedToForumChannelsCannotHaveBothAThreadNameAndThreadId = 220002,
+        WebhooksCanOnlyCreateThreadsInForumChannels = 220003,
+        WebhookServicesCannotBeUsedInForumChannels = 220004,
+        MessageBlockedByHarmfulLinksFilter = 240000,
+        #endregion
     }
 }