Your poster knows what time it is.
And where someone is standing, which phone they hold, whether it's their first scan. The code stays printed as it is. Where it leads, you change – tomorrow, in a year, right now.
At noon the same code shows the lunch menu.

Three people who never reprint again.
One code on the board, on the wall, on the fence. What happens behind it, they decide on their phone, whenever they like.

“Lunch menu at noon, dinner menu in the evening. On Mondays it says when we open again.”

“Station three only tells its story to those who came past one and two. Otherwise it kindly sends you back to the entrance.”

“The poster hung for six weeks. Presale before, the seating plan that evening, the photos afterwards.”
The banner hangs for three months. The sale takes three weeks.
The weeks after are the ones that pay for it: the code then shows the agent's other properties, not a flat that no longer exists.

The same sign says something different to everyone.
A trail has stations in an order you decide. Each sign knows how far someone has come and shows what is due now. Nobody signs in; the phone only remembers the number of steps taken.
How far the visitor has come
Assembly instructions, museum and city trails, safety briefings, rallies with a prize at the end.
Already done. A short reminder, on to the next.
Due here. The actual content.
Too early. The sign says where to go first.
What the code notices when scanned.
You write rules in plain language: if this applies, go there. The first rule that matches wins. The last one always matches, so no scan runs into nothing.
A scan can bring something back.
So far this was about where a code leads. It can also ask: a page with a form, and whatever someone types sits with you — and goes, if you want, to wherever you are already looking.
Stored, always
The entry sits with you, on the code page and in the CSV. That happens first, regardless of whether anything else works out.
Delivered, if you want
Additionally as mail to whoever has to call back, or as a webhook into your CRM. One address is set up once and used by any number of forms.
Nothing gets lost
If the other end does not pick up, it is retried for two hours. After that it says what went wrong. The entry itself is never affected.
What's printed has to outlast every campaign.
Always answers
Every rule list ends in a rule that matches everything. A scan never lands on an error page.
Keeps working without us
The redirect runs on its own. If sign-in or the dashboard go down, printed codes carry on.
Nothing gets lost
Every change is a new version, the old one stays. Going back is one click, not a phone call.
Reprinting is the expensive part. Stop doing it.
Create an account, print a code, free and without a credit card. Or have a human show you.