The best way to verify deliveries against POS (Point of Sale) records with video proof is to implement a video-based verification workflow that automatically links each transaction with visual evidence. You are not trying to prove delivery with video. You are proving what left your warehouse for that sale.
A practical setup usually looks like this:
- Use a single reference like invoice number or order number from your POS
- Record the packing step for that reference and show the items going into the box
- Show the label once so you can line it up with the carrier tracking later
- Let support pull the proof from the order record during a ticket (Zendesk or Freshdesk) without calling the warehouse.