BlogAtlassian Data Center Sunset

17 Sep 2025

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And Why Flexible User License is Essential for Your Cloud Journey


With Atlassian announcing the end of Data Center support by March 2029, enterprises now face a three-year race to Cloud. Atlassian’s new transformation program, Ascend, sets the pace, and success depends on having clarity and control over your licensed users.

That is where Flexible User License (FUL) comes in. Developed by Open Source Consulting, headquartered in Seoul, South Korea, FUL is the go-to Marketplace app to prepare your Atlassian environment for Cloud.

By simplifying user management, reducing costs, ensuring compliance, and strengthening security, FUL helps organizations prepare and migrate with confidence.


The Road Ahead: Data Center End-of-Life Timeline

Atlassian has set phased milestones to give customers time to prepare:

  • Dec 16, 2025 → No new Data Center apps accepted on Marketplace
  • Mar 30, 2026 → Atlassian stops selling new Data Center licenses
  • Mar 30, 2028 → No more license upgrades or expansions
  • Mar 28, 2029 → End of support; products become read-only

Extended maintenance may be available at additional cost, but the direction is clear: Cloud is the future.


The Migration Challenge

Today, over 200,000 seats migrate to Cloud every month, but more than 25 million users remain on Data Center. Many organizations still struggle with:

  • Inactive or duplicate accounts inflating license costs
  • Uncontrolled external access creating compliance risks
  • Limited visibility into actual Jira and Confluence usage

These issues not only slow migration but make it more expensive.


How Flexible User License Helps

FUL addresses the exact blockers that complicate Cloud migration:

  • Accurate user counts: regulate licenses so migrations are based on clean, real-time data
  • Automated onboarding and off-boarding: streamline user management and avoid manual errors
  • Dashboards for visibility: track license use and spot trends before migration
  • Cost reduction: cut inactive accounts to shrink Cloud footprint and monthly spend
  • Stronger security: monitor external users by domain to ensure only authorized access

The result: immediate savings today and a secure, future-ready environment tomorrow.


Cloud Benefits, Without the Waste

Atlassian Cloud is already delivering:

  • Enhanced compliance for regulated industries
  • Enterprise-scale readiness, adopted by 75% of global organizations
  • Up to 300% ROI and 80% faster project delivery

But to fully unlock these advantages, organizations must enter Cloud with a clean, optimized user base. That is exactly what FUL delivers, ensuring you do not carry waste, errors, or risks into the future.


Why Partner with Open Source Consulting

As both the developer of FUL and an Atlassian Platinum Partner, Open Source Consulting (OSCi) brings unmatched expertise in migrations. FUL is not just an app, it is the productivity and compliance layer that makes every migration smoother, safer, and more cost-efficient.


Time to Prepare

The clock is ticking. With Atlassian’s Data Center sunset approaching, now is the time to optimize your licenses.

Start today with Flexible User License and ensure your move to Cloud is faster, easier, and more cost-efficient.

Learn more about Flexible User License or contact atlassian_apps@osci.kr to prepare your environment with clarity and confidence.


Optimize your Atlassian Licenses with Flexible User License!

Experience the Flexible User License app free on the Atlassian Marketplace.
Use the button below to access the app page directly.


Try it for free



5F, Narakium Bldg., 32, Teheran-ro 83-gil, Gangnam-gu, Seoul, Republic of Korea Tel.+82-2-516-0711 E-mail. atlassian_apps@osci.kr © Open Source Consulting Inc. All rights reserved.

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5F, Narakium Bldg., 32, Teheran-ro 83-gil, Gangnam-gu, Seoul, Republic of Korea
Tel.+82-2-516-0711 E-mail. atlassian_apps@osci.kr
© Open Source Consulting Inc. All rights reserved.

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