Certification bodies already spend close to 40 percent of their IT budget just keeping old systems running, before accounting for what AI now demands: new integrations, new security exposure, and new compliance rules arriving faster than most in-house teams can absorb. This guide breaks down what a homegrown system actually costs to maintain, not build, and answers the two questions worth asking before you commit: is your client data safe in a system built without a real plan to monitor it, and have you ever tried building an API to SAP or Salesforce.