The article outlines the steps to reorder Custom Field Values in Sync.
FOLLOW STEPS BELOW:
1. Open the Admin Portal.
2. Click on Custom Fields.
3. Select the Field whose values you wish to reorder.
4. Click the reorder button at the top of the pane.
5. You can manually drag values in a specific ordering, or while in Reorder Mode, you can click the Value column header to sort alphabetically ascending or descending.
NB. For a quick tutorial watch below