Synergy Trello API Sync Audit -- 2

I have a custom integration that keeps Total Synergy and Trello in sync through their public REST APIs. Lately I’ve spotted dates drifting out of alignment, so the immediate objective is to pinpoint where the sync is breaking down – I’m not chasing speed improvements yet, just accuracy... (Budget: $10 - $30 AUD, Jobs: API, API Development, API Integration, Data Analysis, Data Management, Data Processing, Debugging, RESTful API, Software Development, Software Testing)