---
title: Agreement and terms of participation
url: https://help.nfceez.de/en/stamp-card/agreement-and-terms-of-participation/
language: en
topic: Stamp card
updated: 2026-10-18
description: Before you start, the owner concludes the data processing agreement once. The terms of participation for guests are created automatically.
---

# Agreement and terms of participation

Your stamp card stores your guests' data, such as name, email and stamps. Two documents cover this: the data processing agreement between you and NFCeez, and the terms of participation for your guests.

## Data processing agreement
With this agreement (under Art. 28 GDPR), NFCeez processes your guests' data only on your behalf. You conclude it once for your account. **Only the owner can do this.**

**When starting the first campaign:** In the last step, tick "I conclude the data processing agreement." Tap **Read** to open the agreement. Only then can you tap **Start campaign**.

**On the loyalty page:** If the agreement isn't concluded yet, [[Guests › Loyalty]] shows the "Your guests' data" card.
1. Tap **Read the agreement** to read it.
2. Tap **Conclude agreement**.
3. Confirm with **Conclude**. The card disappears.

## Terms of participation for guests
When they sign up, your guests accept your card's terms of participation. You don't have to write them yourself: they are created automatically from your running campaign and your business details. Open them under [[Guests › Loyalty › Terms]].

Among other things, the terms state:
- your business as the provider of the campaign, and NFCeez as the technical service provider,
- the reward, number of stamps and duration,
- that taking part is from age 16, free and voluntary,
- that rewards stay redeemable for 30 days after a campaign ends, and an earlier end needs 30 days' notice,
- how guests delete their card, and the privacy notice.

So that your name and address appear correctly, keep your [business details](unternehmensangaben-und-impressum) up to date.

## Common questions
**What does "Only the account owner can conclude the agreement." mean?** You're signed in as a manager or editor. Ask the owner to conclude the agreement.

**What does "Please conclude the data processing agreement first." mean?** The campaign can only start once the owner has concluded the agreement.

**What does "The agreement is being finalised." mean?** Concluding it isn't possible right now. Try again later, or write to us via [Help and contact](hilfe-und-kontakt).