WARP
How to Cancel a SaaS and Migrate Off It: Notice Deadlines, Data Export, and Parallel Runs
Once you decide to cancel a SaaS and build the replacement in-house, plan backward from the renewal date. This article covers the notice deadline for stopping auto-renewal, the clause that re-prices a renewal when you cut seats, the 30-day window to export data after termination, narrowing what you migrate, and deciding in advance when a parallel run ends. It draws on guidance from Japan's IPA, the Japan Fair Trade Commission, the Digital Agency's DS-310, the Japanese Civil Code on standard terms, and the EU Data Act, and ends with a schedule worked back from the renewal date.
2026-09-29Ryuta Hamamoto