Cloud migration isn't just a technical project - it's a business transformation. After helping dozens of European enterprises navigate their Atlassian Cloud migrations, we've identified five risks that most organizations miss until it's too late.
1. Data Residency Compliance Gaps
European enterprises face strict data residency requirements under GDPR. While Atlassian offers data residency options, the reality is more nuanced than their marketing suggests. Not all product data is covered, and marketplace apps may store data in different regions entirely.
Our recommendation
Conduct a thorough data mapping exercise before migration. Identify exactly which data elements fall under residency requirements and verify Atlassian's coverage for each.
2. App Ecosystem Disruption
Most enterprises rely on 10-30 marketplace apps. Many of these apps either don't have Cloud versions, have reduced functionality in Cloud, or require separate migrations. Losing critical app functionality mid-migration can halt business processes.
Our recommendation
Create a complete app inventory with Cloud compatibility status. Identify alternatives for apps without Cloud versions and plan for transition periods during migration.
3. Hidden Cost Escalation
Cloud pricing looks straightforward until you factor in user tier jumps, premium features you relied on for free in Data Center, and marketplace app subscription costs that increase significantly in Cloud. Many organizations discover their Cloud costs are 30-50% higher than initially estimated.
Our recommendation
Build a comprehensive TCO model that includes all license tiers, premium features, app costs, and administration overhead. Include a 20% contingency for unexpected costs.
4. Change Management Underestimation
The technical migration might take weeks, but the organizational change takes months. Users resist changes to their workflows, and European works councils often require consultation periods that can delay rollouts significantly.
Our recommendation
Start change management before the technical migration begins. Engage works councils early, build a champion network, and plan for a 3-6 month adoption period post-migration.
5. Integration Architecture Changes
Server and Data Center integrations often rely on direct database access or server-side plugins that don't exist in Cloud. Every custom integration needs to be rebuilt using REST APIs, Forge, or Connect, a process that can easily double the migration timeline.
Our recommendation
Inventory all integrations and classify them by Cloud compatibility. Prioritize rebuilding business-critical integrations first and plan for parallel operation during the transition.
Conclusion
Cloud migration is inevitable for most Atlassian customers, but rushing it without addressing these hidden risks leads to budget overruns, timeline slips, and organizational frustration. A vendor-neutral assessment before you start can save months of pain and hundreds of thousands of euros.
Need help planning your migration? Our team provides independent assessments that identify these risks before they become problems. Talk to a migration expert.