Two-way sync

Sync data in both directions between apps in real time. How to turn on two-way sync and how read-only fields like formulas and lookups behave.

Whalesync offers true two-way sync. Once set up, you can update data in either connected app and it will sync to the other in real-time.

When creating a new Whalesync base, two-way sync is easy to configure. Simply toggle the direction arrows to two-way:

Read-Only Fields

There are certain field types you cannot sync data into. For example, a formula field cannot be overwritten. We call these "read-only" field types and tag them in the setup flow:

If you map a read-only field and choose two-way sync, that read-only field will be one-way while the rest of your fields remain two-way.

The built-in "<App> Record ID" field is a read-only field that is worth mapping. Each app's Record ID flows one-way into a text field on the other side, and the rest of the table stays two-way. See store-record-ids-on-both-sides.md.

Example read-only field types
Formula
Lookup
Rollup
Count
Created Time
Last Modified Time
Autonumber