Customer identity case study

Unifying Customer Identity Across Multiple Applications

A large organization needed one customer identity across several applications. We moved customers into the new tenant as they logged in without moving passwords or forcing resets.

Case study summary

Business problemCustomers had separate identities across several applications.

Roughly five identity tenants needed to become one without disrupting authentication.

Architecture decisionMigrate each customer when they next authenticated.

A common identifier connected the customer in the existing tenant to the same customer in the new tenant.

Business resultOne identity worked across multiple applications.

The infrastructure changed behind the scenes while the familiar login experience stayed intact.

The Challenge

A large organization was using multiple identity tenants across several applications. The goal was to consolidate roughly five tenants into one so customers could have one identity and use the same username and password across every application.

The applications could move to the new tenant. The users could not simply move with them. Customer passwords and authentication data could not be copied between the identity systems.

Forcing every customer to reset a password would create a poor experience and add unnecessary risk to the migration. The organization needed a way to move customers without asking them to do anything differently.

The Approach

DrockTech identified a common identifier that could connect a customer in an existing tenant to the same customer in the new tenant.

Instead of treating migration as a single, disruptive event, we designed a path that used a normal customer action: logging in. When an existing customer authenticated, the system could identify that person, create the relationship in the new tenant and move the account into the unified identity system.

The migration happened naturally as customers returned.

The Solution

Moving customers as they logged in let the organization consolidate multiple identity tenants while keeping the existing authentication experience intact.

Customers did not need to understand that an infrastructure migration was happening behind the scenes. No password data was copied, and there was no forced reset campaign. Over time, applications moved to a common identity platform and customers could use the same username and password across them.

The Result

The organization moved from roughly five separate identity tenants to one unified identity platform. That simplified the architecture and gave customers one identity across multiple applications.

More importantly, a major infrastructure migration did not become a customer problem. The architecture created a practical bridge between the old and new systems, allowing adoption to follow real customer behavior.

Key Takeaway

Not every migration needs to happen all at once. Sometimes the better solution is to create a reliable path between old and new systems, then move users naturally over time.

How DrockTech Helps

Identity problems usually reach beyond authentication. They touch applications, APIs, customer data, security and user experience.

DrockTech helps connect those pieces and find a practical path forward.

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