This is where it becomes a little tricky since Google only allows you to add a bid modifier on gender and then a separate modifier on age. This means that you can’t simply target females between the ages of 25-34, you need to place a bid modifier on females of say +5% and then a separate modifier say +5% on the age groups 25-34. This will also result in an overlap of these bid modifiers to lesser performing segments. Now this may not seem too bad, until you look at some actual data.
To show you what we mean, we’ve pivoted out some actual data from a client account to show you the ROI from each of the category segments.
Notice how females are more profitable than males (that’s good, we can target that!). But look again, and you’ll notice that the unknowns within 35-44 and 45-54 fall far below the age group average.
One way of getting around this flaw is to only place very small bid modifiers on each demographic. Part of the logic behind this is that, if you also have bid modifiers in place for Remarketing lists, Time of Day and Geographical areas, all these increases to the CPC will soon push the campaign into unprofitable territory.
The other option you have is a little more labour-intensive. As mentioned above, it’s not possible to target a specific age/gender segment on its own, it’s also not possible to place a -100% bid adjustment (lowest possible is -90%). This means that if you wish to target 1 specific segment on top of your standard account, you would need to expand out a new campaign to target the age and gender you wish, with -90% bid adjustments on other ages and gender options.
Now, if you’re managing your AdWords account properly, you’ll already be Match Stacking your campaigns (campaigns targeting specific match types, and only that match type). The effect of specific demographic bid modifiers would then be that you may end up with at least double the number of campaigns in your account! At present, the only way around this (without adding new campaigns) is to double up the targeting within the same campaign, thus risking applying bid modifiers to unprofitable segments.