Founder here. I built DataBackfill during my own GA4 migration struggle. While helping clients move from Universal Analytics to GA4, I kept hitting the same wall - getting historical data into BigQuery was a massive pain. After writing the same scripts over and over (and dealing with endless API timeouts 😅), I thought "there has to be a better way." So I built one! DataBackfill started as a simple tool for my own use, but after sharing it with other analysts and seeing their reaction, I realized this was a problem a lot of people were facing. We're launching today with both a free tier and a pro version. The free tier lets you sync from one GA4 property and access 60 days of historical data. For teams needing more, the pro version removes these limits and adds priority support. I would love hear your thoughts! Also, big shoutout to my early users who helped shape this product. Your feedback has been invaluable! 🙏 Let's chat in the comments