Lotus Notes and HCL Notes have supported thousands of custom applications in large enterprises, many of them business‑critical. When CIOs plan HCL Notes Migration or Lotus Notes Migration, the biggest challenge is rarely mail—it is these deeply embedded Domino applications.
This article provides a practical approach to classifying, prioritizing and migrating Notes applications at scale. For platform background, start with our articles on Lotus Notes and where it is today and Domino Server as an advanced application and AI platform, then review our Domino Migration strategy for CIOs.
Why Lotus Notes Applications Complicate Migration Decisions
Notes applications often:
- Encode complex business logic. Years of enhancements have embedded workflows, approvals and calculations that are difficult to replicate elsewhere.
- Interconnect with other systems. Integrations with ERP, CRM, file repositories and external services can be intricate and poorly documented.
- Serve diverse user groups. Applications may support internal teams, external partners and customers with different access models.
- Carry regulatory weight. Some Notes applications underpin processes with explicit regulatory or audit requirements.
These factors mean you cannot simply treat Notes applications as “mailbox attachments”—they require a structured migration approach guided by experienced Domino Developers and Domino Engineers.
Classifying Domino Applications: Retire, Replace, Rebuild, Re‑platform
Start with a portfolio‑level classification:
- Retire. Low‑usage, low‑value apps with no regulatory obligations can be decommissioned after appropriate data archiving.
- Replace. When a SaaS or off‑the‑shelf solution exists that meets requirements, replacing is often less risky than custom rebuilding.
- Rebuild. High‑value, unique applications may need to be rebuilt on modern platforms with improved UX, APIs and analytics.
- Re‑platform on Domino. Some applications are best modernized in place—using current Domino versions, web or mobile front‑ends and Domino IQ for AI‑driven enhancements.
This classification process aligns with the higher‑level decisions outlined in Domino Migration Strategy for CIOs: Stay, Modernize or Move Platforms.
Target Options: Microsoft 365, SharePoint, Power Platform and Others
Common target platforms include:
- Microsoft 365 and SharePoint. Ideal for document management, collaboration and workflow solutions where tight integration with Office apps is a priority.
- Power Platform. Power Apps, Power Automate and Power BI can replicate many Notes workflows with modern UX and analytics.
- Custom web or cloud apps. For highly specialized needs, custom development on modern frameworks may be warranted.
- Modern Domino applications. For workloads that benefit from Domino’s security, replication and AI roadmap, re‑platforming on current Domino/Notes versions and Domino IQ can be the best path.
RockTeam’s dual expertise in Domino and Microsoft platforms, combined with our Enterprise Microsoft 365 Migration Checklist, simplifies evaluating these options for each application.
Coexistence Between Domino Server and New Platforms
In large organizations, Domino and new platforms typically coexist for years:
- Directory and identity. Synchronize identities and access controls across Domino, Microsoft 365 and other systems.
- Data exchange. Use APIs, integration middleware or direct connectors to keep data coherent during transition.
- User experience. Provide clear communication so users know where to go for each application or function.
Our article on Domino Server’s future vision shows how Domino can continue to serve as a secure application backend even as front‑end workloads move to other platforms.
Governance, Testing and User Adoption
To avoid disruption:
- Governance. Establish clear decision‑making, prioritization and risk management structures for application migration.
- Testing and validation. Thoroughly test data migrations, workflows, permissions and integrations before go‑live.
- User adoption and training. Provide training, champions and support to help users adopt new tools and processes.
RockTeam delivers end‑to‑end Domino Developer and Domino Engineer support during migration, as well as Email Migration Service capabilities to coordinate mail and application transitions. Combined with your broader IT Consulting Services roadmap, this ensures Notes applications migrate in a way that strengthens—not weakens—your digital strategy.
