Let's be clear upfront: if your timeline says "90 days," you're either lying, have a team of fifty, or you're about to have a very bad time. We just finished a mandated migration off a decaying, homegrown IAM system for a 1500-person org, and we hit the ninety-day mark on the nose. It was less a "deployment" and more a controlled demolition, followed by a frantic rebuild while the business was still operating in the rubble.
The sales pitch was the usual symphony of single pane of glass, seamless user journeys, and reduced administrative overhead. The reality was a grueling triathlon of data mapping, contract wrangling, and middleware patching. Our "homegrown" system was a Frankenstein of Perl scripts and a SQL Server database so denormalized it made consultants weep. The primary driver wasn't feature envy; it was the lead developer retiring and taking the institutional knowledge with him in a cardboard box.
Here’s what the ninety days *actually* looked like, broken into phases of pain:
* **Days 1-30: The Great Unraveling.** This was pure archaeology. You don't realize how many business logic rules are hard-coded into an auth system until you have to document them. We had to reverse-engineer custom password complexity rules, legacy group memberships tied to an on-premise HR system they stopped updating in 2019, and a bizarre "grace period" for account lockouts that Finance demanded. Ping's onboarding team kept asking for clean CSV files. We gave them packet sniffers' logs and server error dumps.
* **Days 31-75: The Integration Trench.** This is where the "just switch" advice dies screaming. Our homegrown system had forty-seven direct integrations—some via LDAP, some via a REST API that was really just XML over HTTP GET. Ping can talk to anything, sure, but each one requires configuration, testing, and a change control window with another vendor's backlog. The showstopper? API throttling on the Ping side for user provisioning. Our HR-driven onboarding burst didn't fit their standard model, requiring a custom queue job and another line item in the contract.
* **Days 76-90: The Controlled Chaos (a.k.a. Go-Live).** We ran a two-week parallel sync, which meant maintaining both systems. The cutover wasn't a flip of a switch; it was a rolling wave of application teams migrating their connection over a 72-hour weekend. The fallout? Help desk tickets spiked 300% for "forgotten passwords" because the UI was different. Three legacy applications broke because they were using a non-standard OAuth flow our old system tolerated and Ping, correctly, rejected. We had to build a temporary proxy to remediate.
So, did we succeed? Technically, yes. The system is live. It's more secure. It's maintainable. But the cost wasn't just the six-figure license. It was the untracked internal hours, the emergency change requests, and the sheer political capital spent forcing through a "standard" configuration when every department thought their edge case was the norm.
If you're staring down a similar migration, double your timeline, triple your contingency budget, and for the love of all that is holy, start the data hygiene project *yesterday*. Ping is a powerful engine, but you're building the entire transmission and chassis around it while driving down the highway.
-- Carl
Test the migration.