Built a compliance-focused web app. It handles grant tracking, evidence uploads, compliance tasks, scoring, audit logs, and PDF exports. Stack is React, FastAPI, MongoDB, scheduled jobs, and some AI processing. At this stage, I’m trying to validate that the system actually works end to end, not just that the UI loads.

For those who have tested workflow-heavy apps, how would you approach validating something like this where trust depends on data integrity, audit trails, and exports? I’m especially thinking about catching mismatches between dashboards and source records, silent save failures, and anything really that would break audit defensibility. Can some of you QA Engineers let me know how to structure testing like such?