The below example shows how to structure the URL parameters to pre-fill the following data:
Booking notes (urlencoded)
Any custom fields*, specified by ID.
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As well as those custom fields which display on the booking widget for the customer to complete, it is possible to pre-fill custom fields which do not display on the widget for the customer. These custom fields would be created as internal only within the Appointedd web application. Pre-filling fields which don’t display to the customer allows the business to pass data into Appointedd without displaying that information in the widget for the customer to see or edit. This can be useful for passing data such as the source of the customer to determine which marketing campaign they arrived at the booking process from, for example.