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Can I import my historical data from GA4?

Why historical import is a trap, what to keep instead, and how long TapCub retains your new data.

Getting started1 min readLast updated Oct 28, 2026TapCub teamPart of Migrate from Google Analytics 4 or Baidu Tongji

Short answer

No — and no tool really can, because GA4 counts users and sessions differently. Keep read access to GA4 for historical and year-over-year questions, and let TapCub build its own history from the day you install.

Why you should not import it

GA4 history is counted with GA4’s definitions: cookie-based users, engaged sessions, its own channel grouping. Loading those totals into a tool that counts cookieless visitors and a different session rule would put two incompatible definitions on one chart — the trend line would jump on the day you switched, for no real reason. That is worse than two clean datasets side by side.

What to keep instead

  • Keep read access to your GA4 property. It stays available for historical and year-over-year questions.
  • Export any GA4 reports you refer to often as CSV before access lapses.
  • Note the switch date somewhere visible, so a dip or jump around it is understood as a tool change, not a traffic change.

How long TapCub keeps new data

TapCub starts collecting the day you install and retains raw data by plan: 6 months on Free, 12 months on Pro, and 24 months or more on VIP. For a longer archive, create raw exports — see export and deletion. Plan details are in Plans and limits.

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