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How To Prefill Guest Information Using Booking Hubs [New]

Prefilling guest information on your Booking Hub streamlines the process for both you and your guests. By reducing manual data entry, it saves time, minimizes errors, and enhances the overall booking experience. This article covers how to use URL parameters to prefill guest details for any Booking Calendar within your Booking Hub.

We recommend mapping the Booking Form questions of each Booking Calendar to Object Properties if you plan to use prefilling with Booking Hubs. This ensures that if you have similar questions on multiple Booking Calendars within the Booking Hub, they can be prefilled using the same URL parameter (Object Property).

For guidance on mapping, refer to our Mapping Booking Calendar Questions to Object Properties article.

How to Build Your Prefilled Guest Link

Step 1: Get the Base Booking Hub Link

Follow these steps to retrieve the base link for your Booking Hub:

  1. Click Booking Hubs in the left-hand navigation menu.
  2. Click Share next to the Booking Hub you want to get a link for.
  3. Click Copy & close to copy the link.
  4. Paste the link into a text editor for later use.

Step 2: Get the URL Parameters for the Added Booking Calendars

Follow these steps to retrieve the URL parameters for each Booking Calendar:

  1. Click Booking Calendars in the left-hand navigation menu.
  2. Click Share next to the Booking Calendar you want to get the parameters for.
  3. Check Personalization and Tracking in the pop-up.
  4. Optional: Expand UTM Parameters and add any UTMs that you want to use for tracking.
  5. Expand Booking Form URL Parameters.
  6. Select the Prefill booking form dynamically via third party tool option.
  7. Ensure that all the Questions you want to prefill are toggled on.
  8. Click Copy & close to copy the link.
  9. Paste the link into a text editor for later use.

IMPORTANT: If your Booking Calendars have different questions you want to prefill, you can repeat the steps above to get the unique URL Parameters for each Booking Calendar.

Step 3: Combine the URL Parameters with the Booking Hub Link

Follow the steps below to combine your Booking Hub link with the URL parameters based on the structure illustrated in the following image:


  1. Start with your base Booking Hub link: 
    https://oncehub.com/HubExample
  2. Add a query separator ? at the end of the Booking Hub link: 
    https://oncehub.com/HubExample?
  3. Add your first parameter after the query separator ?: 
    https://oncehub.com/HubExample?name=XXXX
  4. If adding multiple parameters, separate each parameter with an &:
    https://oncehub.com/HubExample?name=XXXX&email=XXXX

IMPORTANT: If you have Booking Calendars with different questions you want to prefill, you should add the URL Parameters for each question. They will then be automatically used when the relevant Booking Calendar is selected during scheduling.

Step 4: Hide Prefilled Questions from Guests (Optional)

To minimize the number of questions your guests need to answer, add &skip=1 to the end of your Booking Hub link. This ensures that guests only see the questions for which information has not already been supplied by you.

https://oncehub.com/HubExample?name=XXXX&email=XXXX&skip=1

NOTE: If all required questions are prefilled, guests will automatically skip the booking form, leading to a faster scheduling process.

Step 5: Share the Booking Hub Link with Your Guests

The link is now ready to be used. Replace the XXXX for each URL parameter with your guests’ details when you share it with them. This can be done manually or dynamically with third-party tools like CRMs or marketing platforms.

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