| Format > Bold | Supported | |
| Format > Italic | Supported | |
| Format > Underline | Unsupported | |
| Format > Text Color | Unsupported | |
| Format > Strikethrough | Supported | |
| Format > Link | Supported | |
| Format > Bulleted List | Supported | |
| Format > @user | Supported | |
| Format > @space | Supported | |
| Format > Picture | Supported | |
| Send By | Supported | The Google Chat API does not support retrieving the name information of external users. The placeholder will be Unknown user. |
| Emoji | Partially Supported | Custom emojis are unsupported. |
| Gif | Supported | |
| Voice message recording | Supported | The format of the backup item’s name is UserRecording_idxxxxx.mp3. |
| Video message recording | Supported | The format of the backup item’s name is UserRecording_idxxxxx.mp4. |
| Video Meeting | Unsupported | |
| Call ended/Call missed message | Unsupported | |
| Calendar Event | Unsupported | |
| Tasks | Unsupported | |
| Edit Message / Edit Reply / Edit Quote in Reply Message | Unsupported | |
| Deleted Message | Unsupported | |
| App Message | Partially Supported | The Google Chat API does not support retrieving the name information of apps. The placeholder will be Unknown app. |
| Link > Message link | Supported | |
| Link > Drive file link | Supported | |
| Link > Copy link to the space | Supported | |
| Reply in thread | Partially Supported | The message texts will be backed up, but the original format cannot be kept. |
| Quote in Reply | Supported | |
| Files > Links to the files in Google Drive | Supported | |
| Files > Links to the folders in Google Drive | Supported | |
| Files > Files uploaded in Google Chat | Supported | |
| Files > Policy violation type | Unsupported | |
| Reaction | Supported | |
| Star | Unsupported | |
| Mark as Unread | Unsupported | |
| Active threads | Partially Supported | The message texts will be backed up, but the original format cannot be kept. |