I need a simple QR-based inventory workflow connected to a Smartsheet. Using Zapier or a similar plugin, set up a process where I select IN or OUT, scan a QR code for an item, and the Smartsheet updates the quantity accordingly (IN adds, OUT subtracts). The link between the QR code and the Smartsheet row must be reliable, fast, and easy to use. Scope & Requirements: Configure Zapier (or equivalent) to connect QR scans to a specific Smartsheet. Map QR codes to item records (SKU/ID) in a short item list sheet. Build a simple selector for IN/OUT before scanning. On scan: IN → increment item quantity. OUT → decrement item quantity. Handle duplicates and missing items gracefully (create or alert). Minimal user steps; mobile-friendly scanning preferred. Deliver testing, documentation, and handoff. Tech Preferences: Smartsheet + Zapier (open to other plugins if faster/cheaper). QR scanning via mobile (web app or supported scanner app). Clean, straightforward setup with clear instructions. Deliverables: Working integration linking QR scans to Smartsheet rows. Configurable IN/OUT toggle. Demo + brief setup guide. Basic error handling (invalid QR, item not found). Notes: Inventory sheet already exists (short item list). Please specify any paid tools or add-ons required.