![](https://docs.prim.io/content/uploads/2022/04/fixing-1.png)
Click the “Fixing by BNB for a period” button.
Choose from which date to which date you want to synchronize the courses. From the drop-down menu of currencies you can select several to sync together.
After synchronizing the exchange rates of the currency(s), you can see from the chart whether everything has gone correctly. To do this, refresh the exchange rate information using the “Reload” icon located in the top right corner of the window.