AEM Cloud Service Migration: 5 Questions to Ask Before You Start

AEM 6.5 end-of-support is driving migration conversations across every enterprise that runs Adobe Experience Manager. The pressure to migrate to AEM Cloud Service is real.

But migration for migration's sake wastes budget, disrupts operations, and often creates more problems than it solves. Before you start, these five questions will determine whether you're ready — and whether AEM Cloud is actually the right destination.

Question 1: What's Your Actual Content Architecture?

Not what the documentation says. What's actually running in production.

Most enterprise AEM environments have drifted significantly from their original architecture. Custom components that were "temporary" three years ago are now critical to daily operations. Content structures that made sense for 2 languages now serve far more.

Before migrating, you need a complete inventory of what's actually in your system. Not the architecture diagram from the original implementation — the reality on the ground.

What to do: Run a full content architecture audit. Catalog every custom component, every template, every content fragment model, every integration. This inventory becomes your migration blueprint.

Question 2: Which Customizations Won't Migrate?

Here's what Adobe's migration documentation undersells: many common AEM 6.5 customizations don't have direct equivalents in Cloud Service.

Custom OSGi configurations, certain dispatcher rules, specific workflow implementations, and some authentication patterns need to be rebuilt — not migrated. This isn't a simple lift and shift.

What to do: Map every customization against the Cloud Service compatibility list. For each incompatible item, determine whether to rebuild it in Cloud Service, replace it with a native Cloud Service feature, or eliminate it entirely.

This mapping exercise alone typically reveals that 20-30% of customizations need significant rework. Budget accordingly.

Question 3: What's Your Real Timeline?

The question that stopped one of our clients from making a very expensive mistake.

Their procurement team had negotiated a 6-month migration timeline based on a vendor proposal. When we audited their environment, the honest timeline was 12-14 months — because their custom component library was extensive, their integration surface was complex, and their testing requirements for a multilingual enterprise environment were significant.

Starting a migration with the wrong timeline doesn't just delay completion — it forces shortcuts that create technical debt you'll spend years cleaning up.

What to do: Get an independent assessment of your migration timeline. Not from the vendor selling you the migration — from someone who's done it and can tell you the truth.

Question 4: Can Your Team Operate Both Environments During Transition?

Migration isn't a switch you flip. For weeks or months, you'll be running the old environment in production while building the new one in parallel.

This means your operations team needs capacity for both. Content still needs to be published on the old system. New features still need to be built on the new one. Support SLAs don't pause because you're migrating.

What to do: Plan the transition period as a separate project with its own staffing model. The worst migration failures happen when teams try to run transition on top of their existing operational capacity.

Question 5: What's Your Rollback Plan?

Nobody talks about this, but every migration should have a documented rollback plan. If the new environment fails in production, how quickly can you revert to the old one?

This isn't pessimism — it's engineering discipline. The organizations that plan for failure are the ones that rarely need to execute on those plans, because the discipline of planning surfaces risks before they become incidents.

What to do: Define rollback triggers (what conditions would activate a rollback), rollback procedures (step-by-step instructions), and rollback timeline (how long to revert). Test the rollback plan before go-live.

The Bottom Line

AEM Cloud Service is a strong platform. For many enterprises, migration is the right strategic decision. But "right decision" executed poorly is worse than no decision at all.

These five questions don't tell you whether to migrate. They tell you whether you're ready to migrate well.

Planning an AEM Cloud migration? Start with our free AEM Migration Readiness Assessment at dbugger.net/aem-health-check — a structured evaluation that gives you a realistic scope, timeline, and risk assessment before you commit.