What is a repeat rate and what does it mean to your business?
If you go into tools under measurement and go to the conversions sections of Google Adwords (new interface), you should see at least one conversion type (if you have this setup) and a bunch of columns. One of those columns will say repeat rate. Depending on how you setup your conversion pixel this can cause you to either over report conversions or under report conversions.
Let's step back a bit. When you are in the process of creating a conversion in Google Adwords, the first step you will see will be the following:
You have two options here, every or one. According to Google "if someone clicks your ad, then makes 3 purchases, AdWords will count 3 conversions." If you choose one, according to Google "adwords counts only one conversion per ad click." At Relay PM, when we setup Google Adwords conversion tracking for a client we assess the type of conversion we are tracking for each client. If we are tracking purchases we will choose every and if we are tracking leads we will chose one. The reason is that if someone makes multiple purchases on a website, each purchase has revenue attributed to it and thus should be counted as a conversion because each additional conversion does add more value. With lead generation, if one person submits multiple leads there typically is no additional value to counting every time the lead is submitted.
Depending on what your conversion window is set to (30, 60, 90...) the repeat rate is based on that window. If someone clicks on an ad and makes more than one purchase at any point during that conversion window, it is counted as a repeat. Same goes for submitting leads. When you are looking at the repeat column in the conversion section in Google Adwords you will see the average number of conversions submitted per user based on whatever date range you are currently viewing. Keep in mind no matter which option you choose, every or one, the repeat column still shows the average number of conversions per click or interaction, but they will only be included in the Adwords conversion columns if you chose every.
Now, there are potential issues to using the every conversion option that we have seen. Users can bookmark a purchase or order confirmation page and visit that page again because the page might load too slow and the user tries to reload the page, or the user hits the back button to visit the page twice. We have also seen unknown technical issues causing the conversion pixel to fire multiple times for the same user. Any one of these options are fairly common. Fortunately there is a way around this. You can add an order ID to your conversion tracking pixel. If Google Adwords sees two conversions submitted with the same order ID they will only count one.
Depending on if you are using a conversion pixel from the new Adwords interface or the old Adwords interface you can see the code to implement here: https://support.google.com/adwords/answer/6386790?co=ADWORDS.IsAWNCustomer%3Dtrue&hl=en&oco=0 Order ID's will not be used in any Adwords reporting.
If you have any questions on this topic please let us know.