The article outlines the steps to Edit a Customer within the Sync Admin Portal. Note that you will require Admin permission to access Customers.
FOLLOW STEPS BELOW:
1. Search for the Customer that needs to be amended
2. Click on the ‘Edit’ Icon i.e. Pencil
3. Edit the field/s that need to be updated
4. Close
Note that any amendments autosave when you close.
NB. For a quick tutorial watch below