# What do the symbols mean?
**Symbol** | **Explanation** |
---|---|
[](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/embedded-image-q6siii7a.png) | The green ball indicates that a survey or certificate needs to be updated in this period. At the moment, no additional actions are required. |
[](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/embedded-image-zluwgeb5.png) | The green ball with the curl indicates that this survey has been performed. This survey has been included in the history tab. |
[](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/embedded-image-ofc99sej.png) | The orange triangle indicates that the survey or certificate renewal is currently in the window period and therefore needs your attention. |
[](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/embedded-image-cbagmsxp.png) | The red diamond indicates that a survey or certificate needs to be renewed and actually is overdue. |
[](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/embedded-image-dzgiwgmn.png) | The line to the left of a symbol indicates the window period before the survey or certificate renewal. The length of the line indicates the number of months in this period. |
[](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/embedded-image-0ezohfis.png) | This certificate has expired and the due date is not in the current view. |