The following table lists limitations associated with sending text messages (SMS), App Messages and Emails to pupils, staff or other contacts in the JoinUp platform:
| Message type | Character Limits | Attachment Types / Limits |
| Text Message (SMS) | No limit*. | N/A. |
| App Message | No limit. | Attach PDF, PNG, JPG, or GIF files, up to 10MB. |
| No limit. | Attach PDF, PNG, JPG, or GIF files. You can upload up to 10 files. The total maximum size for all files together is 6MB per message (not per file). |
* Whilst there are no character size limits for each text sent, a single SMS message is limited to 140 characters (1 credit per user sent to). If your message exceeds this length, it incurs a higher charge, for example, up to 280 characters will cost double (2 credits per user sent to), while 420 characters will triple the cost (3 credits per user sent to).
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