diff --git a/src/Discord.Net.Core/DiscordErrorCode.cs b/src/Discord.Net.Core/DiscordErrorCode.cs
index e9ed63e58..51fd736f6 100644
--- a/src/Discord.Net.Core/DiscordErrorCode.cs
+++ b/src/Discord.Net.Core/DiscordErrorCode.cs
@@ -58,6 +58,7 @@ namespace Discord
         #endregion
 
         #region General Actions (20XXX)
+        UnknownTag = 10087,
         BotsCannotUse = 20001,
         OnlyBotsCanUse = 20002,
         CannotSendExplicitContent = 20009,
@@ -98,6 +99,8 @@ namespace Discord
 
         #region General Request Errors (40XXX)
         MaximumNumberOfEditsReached = 30046,
+        MaximumNumberOfPinnedThreadsInAForumChannelReached = 30047,
+        MaximumNumberOfTagsInAForumChannelReached = 30048,
         TokenUnauthorized = 40001,
         InvalidVerification = 40002,
         OpeningDMTooFast = 40003,
@@ -112,6 +115,7 @@ namespace Discord
 
         #region Action Preconditions/Checks (50XXX)
         InteractionHasAlreadyBeenAcknowledged = 40060,
+        TagNamesMustBeUnique = 40061,
         MissingPermissions = 50001,
         InvalidAccountType = 50002,
         CannotExecuteForDM = 50003,