Updated from Slack docs, 2025/03/07

Author: Slack API Ref Buildbot

methods/bookmarks/bookmarks.add.json

@@ -69,6 +69,8 @@
     "parent_with_link": "Parent bookmark should not have link.",
     "permission_denied": "No permission to perform this operation.",
     "too_many_bookmarks": "Bookmark limit reached for channel.",
+    "file_already_added": "The file has already been added to the folder.",
+    "too_many_tabs": "tab limit reached for channel.",
     "account_inactive": "Authentication token is for a deleted user or workspace when using a bot token.",
     "deprecated_endpoint": "The endpoint has been deprecated.",
     "ekm_access_denied": "Administrators have suspended the ability to post a message.",

methods/chat/chat.postEphemeral.json

@@ -115,6 +115,9 @@
     "restricted_action": "A workspace preference prevents the authenticated user from posting.",
     "too_many_attachments": "Too many attachments were provided with this message. A maximum of 100 attachments are allowed on a message.",
     "user_not_in_channel": "Intended recipient is not in the specified channel.",
+    "not_in_channel": "Cannot post user messages to a channel they are not in.",
+    "invalid_attachments": "Attachments that contain blocks are not valid.",
+    "cannot_reply_to_message": "This message type cannot have thread replies.",
     "access_denied": "Access to a resource specified in the request is denied.",
     "account_inactive": "Authentication token is for a deleted user or workspace when using a bot token.",
     "deprecated_endpoint": "The endpoint has been deprecated.",