Summary
To sync Google Sheets using Bracket, each sheet must have a primary field column that contains unique values. This can be as simple as an integer, or more complex like a UUIDv4.How to set up your primary key
For one-way syncs that read from Google Sheets, the primary key for any populated rows must have a static unique value. This value must never be changed, or data duplication can occur. For all other sync configurations, the primary key must sync with a field in the opposing data source that is itself unique.For example, if you are syncing Postgres with G Sheets in a two-way sync, the G Sheet primary key should sync with the Postgres primary key field in the field mapping