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description=Connect Loops to hundreds of apps to manage contacts and send emails.;

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rudderstack loops documentation index fetch the complete documentation index at docs llms txt use this file to discover all available pages before exploring further skip to main content loops home page contact us log in loops search navigation integrations rudderstack search k learn get started editing emails workflows events goals contacts transactional email integrations overview forms incoming webhooks auto bcc auth0 auth js better auth bubble carrd clay clerk fivetran framer integrately novu make polar posthog rudderstack segment stripe supabase webflow zapier smtp account agent skills for loops security api api introduction api reference examples sdks webhooks api changelog cli overview auth campaigns completion components contact properties contacts email messages events lists themes transactional uploads workflows guides all guides getting started workflows deliverability integrations creating emails recipes email basics on this page configuring the destination create or update a contact send an event testing in rudderstack in loops integrations rudderstack copy page connect loops to hundreds of apps to manage contacts and send emails copy page our rudderstack integration lets you create and update contacts send events to trigger workflows configuring the destination in rudderstack go to destinations and click new destination search for loops and select it select the source you want to connect loops to on the next page you need to add a loops api key you can generate a new one on the loops api settings page and paste it into the api key field click continue at the bottom of the page to finish the setup create or update a contact to send contact data to loops use rudderstack s identify call identify users with a unique user id from your source you can include contact properties in the traits object like firstname and lastname in this example for new contacts make sure to include an email address otherwise the call will fail if the contact has already been sent to loops with its user id you can omit the email address unless you want to update that value in general we recommend to always include an email address rudderanalytics identify userid email test example com firstname adrian lastname brown to manage mailing list subscriptions add a mailinglists object to the traits object the key is the id of the mailing list and the value is a boolean indicating whether the contact should be subscribed or unsubscribed rudderanalytics identify userid email test example com firstname adrian lastname brown mailinglists cly2xnjqn002z0mmn68uog1wk true send an event you can trigger emails from rudderstack by triggering events via track calls you should add and define your events in settings events including any expected event properties the event name in your track call must match the name of the event in loops data sent in the properties object will be sent as event properties to loops for use in your emails make sure to call identify before track so the event is associated with a specific contact rudderanalytics track newuser plan pro annual accounttype facebook testing in rudderstack rudderstack includes features to help you test your integration first of all you can see all identify and track calls coming in from your sources click on a source and select the events tab click on the live events button in the top right to view details of events as they come in you can also see all of the calls being sent from rudderstack to your destinations click on a destination and then the events tab at the bottom of this page you will see a table showing events click on these to see any errors that have occurred when sending data to loops in loops you can verify contact updates have happened in loops from the audience page and you can see all incoming events from the events page click on individual events in the event log table to view the payload that loops processed last modified on may 4 2026 was this page helpful yes no posthog previous segment next i x linkedin assistant responses are generated using ai and may contain mistakes contact support