We have used a 'read receipt' system to help you keep track of whether a user you mentioned has seen your comment or not - this allows you to do an offline follow up for particularly urgent updates that have not yet been seen by the person tagged.
| Status | Visual |
| A tag you have created | One black tick |
| A tag that has been delivered | One green tick |
| A tag that has been seen by recipient | Two green ticks |
