Every growing business runs on SaaS at some point. Sign up, pay per seat, ship this week. The tradeoff shows up around year three, when your workflow no longer matches the roadmap of a vendor serving 40,000 other companies.

Here is the checklist we run with clients before anyone writes code.

Five signals SaaS stopped fitting

You pay per seat for read-only users. Half your licenses belong to people who open one dashboard a week.

A spreadsheet holds your stack together. Three tools, one export, one manual reconciliation every Friday. The spreadsheet became your real system of record.