Why is my QR code unscannable?

When a QR code refuses to scan, the cause is almost always one of these:

• Low contrast — the code color is too close to the background color. A dark code on a light background scans best.
• Too small for the scan distance — a code on a poster across the room needs to be much larger than one on a business card.
• Missing quiet zone — the empty margin around the code has been cropped or covered. Leave clear space on all four sides.
• Logo covering too much — a large center logo can hide more of the pattern than scanners can compensate for. Try a smaller logo.
• The code is paused — a paused or disabled dynamic code in your dashboard will not resolve. Check its status and resume it.
• Low-resolution export — a small or heavily compressed image turns blurry in print.

For print, download your code as a PNG at a generous size or as an SVG (which scales to any size without quality loss), and always test the printed code with a couple of different phones before producing the full run.