Is “Learning Limited“ Ruining Your Facebook Ads Performance? Here's How To Get Out Of It

Ever since Facebook rolled out "Learning Phase" back in early 2020, more and more advertisers are getting stuck with "Learning Limited", and then suffered from major performance drop.

  • “After about 2 days or 7/8 conversions, my ad set goes from Learning to Learning limited and the performance drops like hell!”
  • “After Learning Limited, not a single sale at all! Am I doing anything wrong?”
  • “I make enough sales to sustain around 1-1.5 ROAS, however there are not enough sales (50/week) to exit the learning phase. I may only make 20-30 purchases per week, and my ROAS isn't consistent.”
how to fix-facebook-ad-set-learning-limit

Learning Limited is usually due to low volume. It shows up when you are not giving Facebook enough data to optimize. Here are the 3 main factors that cause Learning Limited:

  1. Budget too low
  2. Audience too small
  3. High auction overlap (Using the exact same audience or ad in multiple ad set)

You need around 50 conversions within a 7-day period in order to exit Learning Phase. If you fail to do that, it’ll show “Learning Limited”.

So what are the keywords?

50 Conversions, 7 Days.

You'll come across some people optimizing towards higher funnel goal to meet 50 conversions / week, e.g. Add To Cart / Link Click, however these may not help you to get purchase at all. You can refer to my previous post about How To Drive Facebook Ads Traffic That Actually Converts.

Now let's go into the game plan. Here's a 3-step guide that I personally use to exit learning phase within 5 days:

  1. Test Extensively
    If you are running ads for a completely new product (without any past data), you should allocate some budget to figure out the right combination of audience & creative for your product. For more details, you can refer to my post about How To Test Audience And Creative.
  2. Combine
    Still remember the 3 factors we discussed earlier? Now it's time to combine these ad sets & ads into a CBO campaign. By using CBO, Facebook algorithm is able to determine which ad set / ad is the best based on performance. This will overcome both 'low volume' and 'overlap', at the same time giving Facebook sufficient data to learn and optimize.
  3. Scale
    The goal is to achieve a minimum of 50 conversions within 7 Days. We'll need to do a little bit of mathematics here.
  • Let's say you spent $50 and got 5 sales of $20 each, that would be 2 ROAS at a CPP of $10. Usually 2 ROAS should make a good margin for most products.
  • Now how much you need to spend in a week to get 50 sales? 50*10 = $500.
  • How much you need to spend in a day? $500/7 = $71.43. But let's round it to $72.
  • The minimum daily campaign budget you need in order to Exit Learning Phase is $72.

P/S: Never turn off your ad set for 7 days or longer. The ad set will reenter learning phase again once you unpause the ad set.

In summary, adjust your minimum daily budget to be 50x your CPP. Conforming to the Facebook algorithm will help you to get the most desired results.

If you're still unsure of how to calculate your minimum daily budget (to exit Learning Phase), you can download my excel formula sheet below.