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Paid User Acquisition for Early Stage Startups – Part 3: Facebook Advertising Basics – Interstate Analytics
Paid User Acquisition for Early Stage Startups – Part 3: Facebook Advertising Basics
This is the third post in a 6 post series I am writing about how early stage startups should approach paid user acquisition. My last post outlined some of the basic rules of landing page optimization. This post will cover how to approach Facebook advertising. These rules are based on my first-hand experience running millions of dollars in paid ad spend over the last few years while consulting. They are also informed by the millions of dollars a month in spend we track and analyze on behalf of our customers at my current company, Interstate Analytics.
Facebook is an excellent channel at scale for many startups. I’ve personally worked with multiple companies spending 150-250k/mo profitably (positive return on investment within 30 days) to acquire new customers on Facebook. However, it takes a while to scale up and many of the tactics that work for people spending millions a year on Facebook will not work for you at an early stage. First I’ll break down tactics that work at scale and then I’ll talk about how they work or don’t work at smaller scale.
Facebook Tactics at Scale
At every company I’ve seen who spends millions a year on Facebook profitably, the tactics for running Facebook ads are very similar. I’ve been involved mostly with e-commerce so this may not apply if you’re working in gaming, B2B, mobile-only, etc; however,I hear from my friends who have worked in those sectors that strategies are similar:
- Generate a list of the email addresses of either all users who have purchased, or some smaller subset of ‘good’ users. It’s ideal that this list be large. At least 10,000 emails at minimum, even better if it’s 100k emails.
- Upload this list to Facebook to create a Custom Audience
- Create a Facebook Lookalike Audienceof users in this demographic. Select options for smaller reach and higher accuracy.
- Create News Feed ads (not right hand side as as those only seem to work well for retargeting, not for targeting new customers) mostly on web (conversion to purchase on mobile is poor).
There are a number of variations on this method including running different ad types (e.g. page post boosting, mobile ads, etc), creating larger custom audiences with less accuracy and then filtering them down with various types of demographic targeting, etc. Most companies spend some portion of their Facebookbudget retargeting existing users instead of prospecting for new ones, but this lookalike audience strategy is still the way that 70-90% of Facebook budgets are spent in e-commerce.
Facebook Tactics at Not so Much Scale
The tactics above are great for larger companies with bigger budgets, but what do you do if you’re a small guy without a huge email list to build a custom audience from?
- Aggressively Collect Email Addresses
We covered this in theprevious post on landing pages, but it’s important to remember that email addresses are your friend. If you collect lots of emails early from PR launches and other ‘free’ promotional activities you can build a lookalike audience of people who are interested in your product. It’s not as good as a huge list of purchasers, but it’s is better than nothing.
- Test Interest Targeting
Facebook has an option to target based on interest data, which is harvested from their users’ Facebook data. Not many companies are doing this at scale; however, if you don’t have a large enough list of relevant emails to generate a lookalike audience, it can be a good option at a smaller size. Try a couple different combinations – as we discussed in the first post in this series, don’t try more than a couple combinations because you won’t have the spend volume for it – and iterate. Partner audiences generally perform worse than Facebook interest targeting, so avoid those.
Facebook Tactics at All Sizes
- Roll Your Creative
If you run the same creative to the same audience for too long on Facebook, you will eventually see performance start to fall off. The time this takes varies, but generally I’ve noticed it takes somewhere between 2-4 weeks. This seems to apply only to the visual creative, not the copy itself. You can run the same copy for long periods of time as long as you constantly refresh the creative.
- Leverage Facebook Auto-Optimization
If you put multiple ads in a Facebook ad set, it will auto-optimize them for you and automatically display the ones that it believes to perform the best. This is not based on statistical testing, but rather a Facebook machine learning model. I’ve runtests in the past to A/B teststatistical results against Facebook’s machine learning model and found that Facebook usually chooses the same result, with the added benefit of choosing it much quicker. This can allow you to test creative and copy changes against each other faster by running two or more ads in the same ad set and seeing which one(s) Facebook optimizes out. You’ll know when this happens because one of your ads will get lots of impressions and the other(s) will get close to none. This is Facebook telling you that your other ads probably suck compared to the one it’s giving impressions to.
- Bidding Strategy
Bidding for conversions (also known as oCPM) is the best Facebook bidding strategy unless you have a specific reason not to bid that way (e.g. you’re doing brand marketing and are optimizing for views/reach). When bidding oCPM it can also be helpful to pick a goal further up the funnel (e.g. ‘Add to Cart’ instead of ‘Purchase’) if you have a low volume of conversions (e.g. less than 10 conversions a day). This gives Facebook’s auto-optimizer more data to work with. Once you’ve picked your goal you can either let Facebook auto-bid, or bid yourself. If you’re just starting out, it can be a good idea to let Facebook auto-bid in order to get a ballpark range of how much you can expect to pay for a conversion. Once you have a better idea of expected cost per conversion (CPA), and in particular CPAs for different user demographics (e.g. Gender, Age Group, etc) or placements (e.g. News Feed, Right Hand Side, AudienceNetwork, Mobile Newsfeed, etc) you can worry about setting your own bids.
- Segmentation Strategy
If your Lookalike audience is sufficiently large it can be helpful to segment it so you can get an idea of how different groups of users are performing. You do this by creating separate ad sets within a campaign that run all the same ads and just target different demographics. This shouldn’t affect performance, but it will give you a better idea of how CPAs differ by demographic, which can help with optimization. As a rule of thumb I wouldn’t recommend splitting audiences in a way that leads to audiences smaller than 20-30k people in each audience. Another thing to ensure is that if you’re targeting multiple placements (e.g. News Feed, Right Hand Side, AudienceNetwork, Mobile Newsfeed, etc) that you always segment placements into separate ad sets or campaigns. You want to be able to bid differently on different placements as well as understanding performance differences between the same ads on different placements, so you must segment them.
If you’re measuring performance directly in Facebook make sure you check the attribution settings before reporting on conversion data. Facebook’s default attribution model gives Facebook credit for any conversions that happen within one day of a user viewing any ad, or within 28 days of a user clicking on an ad. This means that if you don’t change the default attribution, then a user could scroll by your ad and barely notice it, then search for your site directly on Google and purchase and Facebook would take 100% of the credit for that conversion. If you’re spending across more channels than just Facebook, you can use a tool like Interstate Analytics for more accurate attribution.
- URL Tagging
Make sure you are tagging all your ads with UTM parameters. You can do this in the URL Tags field in each ad. This will help you measure how each campaign and ad are driving results back to your site. For a hypothetical campaign called ‘redbull_sale’ targeting 20-30 year old males with newsfeed ads with a creative you call ‘creative_a’ and copy you call ‘copy_b’, a good structure for your URL would be something like: http://yourwebsite.com/?utm_source=fbads&utm_campaign=redbull_sale&utm_medium=newsfeed&utm_content=cr_a-co_b-20_30m With this setup, if a user clicks through on that ad you’ll know the source, campaign, copy, creative, and placement for the ad click in all of your analytics tools. If you don’t tag URLs at all (e.g. just sending users to http://yoursite.com), then Facebook is the only place you can check stats on conversion. Make sure you set up URL tags so you can sanity check your performance vs Facebook’s dashboard in other tools!
In the next post we’ll cover the basics of Google AdWords advertising. Sign up here to get notified when the next post goes live:
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