Mid-sized operators rarely run on a single platform. A typical stack mixes a vertical-specific PMS or CRM, a separate telephony system, an accounting tool, a messaging channel, and a handful of point solutions. Each one holds part of the truth about a customer, a transaction, or a day of operations. None of them talks to the others by default.
Reports get rebuilt manually every cycle. Numbers get copied between exports. Strategic questions that should take minutes ("how did response time correlate with revenue last quarter?") arrive late and contested.
The organisation in this engagement had reached the point where the cost of disagreement between systems was more painful than the cost of fixing it.