Grow your text marketing list and your email list at the same time using Attentive’s best-in-class sign-up forms. Customers can opt in to both email and text marketing in the same sign-up flow. Our integration ensures that emails automatically sync to Rejoiner so that you can start sending marketing emails immediately. This integration also helps you keep your contact data and opt-in status up-to-date.

Postback data

Through this integration, Attentive shares the following data with Rejoiner:

  • email
  • source = attentive


Ensure that you meet the following requirements in order to set up this integration:

  • You must have a Rejoiner account

Now, complete the following procedures to set up the integration.

Step 1. Collect Rejoiner information

Log in to your Rejoiner account and collect the following information:

  • API Key—Create a new API key specifically for the Attentive and Rejoiner integration by clicking the Settings tab > API Keys.
  • Site ID—Locate your Site ID by clicking Settings > Domain. The ID should be about seven alphanumeric characters.
  • List ID—Locate the list for which you want Attentive to add contacts. Then, copy and save the List ID.

After you collect the information from Rejoiner, you can log in to Attentive to complete the integration.

Step 2. Set up the integration in Attentive

Complete the following procedure to set up the integration in Attentive:

  1. Navigate to the integrations setup page and select Rejoiner.
  2. Enter the following details that you previously collected in Step 1:
    • API Key
    • Site ID
    • List ID
  3. Click Set up integration.
    Your Rejoiner account is now connected to Attentive.


We’re here to help! Contact our White Glove team ( to ask about the Attentive + Rejoiner integration.

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