Tap New and then tap Sync center as shown, if you're using a phone then you may need to first tap
UCare is able to sync groups and people with MailChimp and people with Planning Center. MailChimp is great if you need more advanced email options then are offered by UCare. Planning Center is great for service planning, volunteer scheduling and resource management.
It is recommended that you sign in to the service that you want to sync first then open sync center and tap the service you are interested in, you will be redirected to that service and should grant access to UCare.