If you have Person Account enabled in your Salesforce Org, by default, the layout will display Billing Address and Shipping Address. If you populate address into these 2 fields, the data will not be synchronised over to Saasu. To solve this issue, you need to:
- Edit Person Account Layout
- Remove Billing Address and Shipping Address from the layout
- Add Mailing Address and Other Address to the layout
- Populate Mailing and Other address information and this will be synchronised to the Saasu Contact.