# What do the symbols mean?
**Symbol****Explanation**
[![embedded-image-q6siII7a.png](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/scaled-1680-/embedded-image-q6siii7a.png)](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.
[![embedded-image-zLUwGeb5.png](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/scaled-1680-/embedded-image-zluwgeb5.png)](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.
[![embedded-image-ofc99sEj.png](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/scaled-1680-/embedded-image-ofc99sej.png)](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.
[![embedded-image-cbagMsXp.png](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/scaled-1680-/embedded-image-cbagmsxp.png)](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.
[![embedded-image-DzgIWGmN.png](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/scaled-1680-/embedded-image-dzgiwgmn.png)](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.
[![embedded-image-0EZOhfis.png](https://docs.mxsuite.nl/uploads/images/gallery/2024-11/scaled-1680-/embedded-image-0ezohfis.png)](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.