SignalBridgeThe two sides
Squarespace
On a Squarespace Core, Plus or Advanced plan, paste your SignalBridge snippet into the Header field of Code Injection, and paste it again into the Order confirmation and Order status fields. Squarespace does not allow custom code on checkout pages. Place a test order and check that one Purchase appears with the right value, and use sb_track with Squarespace's order merge tags if it does not.
Read the Squarespace referenceKlaviyo
Create a private Klaviyo API key with Accounts Read and Events Write access and paste it into SignalBridge. Events that carry an email address, phone number or external ID are sent to Klaviyo as metrics named, for example, Placed Order - SignalBridge SS, with order value, items, addresses and campaign details. Events without any profile identifier are skipped, and consent is respected.
Read the Klaviyo referenceThis pairing does not have a step-by-step guide of its own yet. The two references above cover the connection, the events and the limits for each side.