​
Tracking custom event properties for auto-tracked events

If you are using one of our prebuilt source integrations, and you want to include custom properties (or modify existing properties) on these events; then you can do so using the set method.

Imagine for example that I want to send a custom property with my Added To Cart event. I would then call the following function before the Added To Cart event is fired.

cvg({method: "set", eventProperties: {hello:"world"}})

When my Added To Cart event fires, it will now include the custom hello -> world property mapping.

You can modify profile properties in the same way, a full example of the function would be:

cvg({method: "set", properties: {...profileProperties}, eventProperties: {...eventProperties}})