We've a number of implementations where we've extensively used s.contextData["name"] = "value".
Whats the best way to integrate using existing contextData on the page and use that data to trigger events etc in DTM? When I try to use it I keep getting a JS error saying that s.contextData is not defined.
Its not actually about how to use them - we know how to do that - it's how to get them working in DTM and AppMeasurement.js as they're not even getting passed through. It appears like DTM is resetting contextData and so no value is ever passed through.