I need to programmatically retrieve the javascript "tracking tag" from AdWords so that I can add it to my website to implement a ConversionTracker for phone calls.
Question 1: Is the following correct?
1. Add a call extension to my Campaign Feed, indicating that I want a AdWords to assign a Google phone number
2. Call ConversionTrackerService > ConversionTrackerService > WebsiteCallMetricsConversion and get the JavaScript tracking tag from the snippet property of WebsiteCallMetricsConversion
Question 2: Is there a "waiting period" or delay between the time I update my Feed and the time the snippet becomes available on the WebsiteCallMetricsConversion.
Note, I am not asking when the Google number will "go live". I'm asking when the conversion tracking javascript tracking tag snippet becomes available?
Question 3: Does (can?) the javascript tracking tag snippet ever change? In other words, is there any kind of feed update that would cause a snippet I have previously retrieved to become invalid and force me to retrieve it again and update my site?
Thanks!