Large-scale app migrations are a permanent engineering reality, not a one-off task. A practical playbook centers on three 'fake it till you make it' strategies: publish the roadmap before it feels ready and course-correct publicly; engage power users as early adopters to surface blind spots automated tests miss; and build the

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Your inbox, upgraded.Why is app migration scope always underestimated?Working backwards from a non-negotiable deadlinePublishing the roadmap before it feels readyMore like thisPower users as your migration radarThe cross-functional signoff boardImplementation patterns for parallel systemsCustom tooling for continuous validationLeading large-scale app migrations in 2026

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