IG CloudOps
Plan & Stages

Azure Migration Timeline

Build an Azure migration timeline based on risk, dependencies and business impact. The right timeline depends on workload complexity, testing, data movement and governance prep.

Typical Azure migration stages

  1. 1

    Discovery

    Inventory workloads, users, dependencies, data, business services, infrastructure, costs and risk areas.

  2. 2

    Assessment

    Evaluate migration readiness, workload suitability, cost exposure, security gaps and operational impact.

  3. 3

    Landing zone prep

    Prepare subscriptions, identity, networking, security, monitoring, backup, policy and cost governance.

  4. 4

    Migration planning

    Define waves, testing plans, rollback options, responsibilities, communications and go-live windows.

  5. 5

    Pilot migration

    Move a lower-risk workload first to validate the approach, tooling, security, monitoring and handover process.

  6. 6

    Production migration

    Migrate workloads in controlled waves with testing, stakeholder sign-off and operational support.

  7. 7

    Optimisation

    Review cost, performance, resilience, security, monitoring and support processes after go-live.

What affects the Azure migration timeline?

Number of workloads
Application complexity
Data volume
Integration dependencies
Required downtime windows
Security and compliance needs
Testing requirements
Landing zone maturity
Internal team availability
Legacy system constraints
Business change windows
Third-party suppliers

Example migration timelines

Simple
2–6 weeks

Small number of low-complexity workloads with limited dependencies.

Medium
6–12 weeks

Several applications, dependency mapping, landing zone preparation and staged migration.

Complex
3–6 months+

Business-critical platforms, complex integrations, large data volumes, compliance or modernisation work.

Start with an Azure migration readiness assessment to set realistic dates against actual workload complexity.

Planning an Azure migration?

Before you move workloads, check the risks, dependencies and operating model. A short readiness review helps you avoid costly mistakes.

FAQs

How long does a typical Azure migration take?+
A small migration may take 2–6 weeks. Medium migrations run 6–12 weeks. Complex migrations with business-critical platforms can take 3–6 months or more.
Can we migrate in phases?+
Yes, and we recommend it. Waves of related workloads reduce risk and give you opportunities to learn before bigger moves.
What slows migrations down?+
Poor dependency mapping, unclear ownership, missing landing zone, weak testing capability, third-party constraints and rigid change windows.
Do you support out-of-hours go-live?+
Yes. We plan migrations around maintenance windows, customer impact and stakeholder availability.
When can optimisation start?+
Some optimisation is built into the migration itself. Deeper optimisation usually starts within the first 4–8 weeks after go-live.