I keep my sales figures in a Google Sheet, but I’m still copying everything in by hand from incoming CSV files. I’d like to replace that routine with a smooth, reliable workflow. Here’s what I need: • A working script or integration (Google Apps Script, Zapier, Make, or similar) that pulls each new CSV, maps the columns to the correct fields in my existing sheet, and appends the data in the right order. • Automatic checks for duplicates, date-format consistency, and empty cells so my totals stay accurate. • A simple trigger—cloud storage drop-folder, email attachment, or another method you recommend—for kicking off the import without me touching the sheet. • Clear, step-by-step documentation so I can adjust file paths or column headers later. A functional prototype that I can test with real CSVs is the immediate goal; once it’s stable, I’ll sign off and schedule any nice-to-have refinements. If you’ve built similar Google Sheets automations before, let’s talk.