Set up Conversions API, not just the Meta Pixel
Most advertisers stop at the Pixel. But Conversions API does a much better job matching purchases to your ads when the customer journey isn't a straight line, which, as we just covered, is becoming more the norm, not the exception. If it feels technical, this is a cheap, easy thing to outsource on Upwork or Fiverr, well worth it for the data accuracy alone.