# Limit to one submit per user
You can restrict users to a single submission based on their email address or phone number.
### ⚙️ **Steps**
1\. Open the app > click **Forms** > open a form
2\. Click setting icon on the left side > click **General**
3\. Tick on checkbox **Limit to one submit per user** > select option to identify the customers: **email** or **phone**
4\. Click **Save**
### ✅ How It Works
Once **Limit to one submit per user** is enabled, the app checks for duplicate entries based on the **email address** or **phone number** entered in the form.
**🚫 When a user tries to submit again**
If someone attempts to submit the form more than once using the same email or phone number, the form will block the submission and show an error message such as:
> **“Data already exists”**
This message informs the user that they have already submitted the form.
### 🔧 Use Cases — When to Enable This Option
* Contests or giveaways: limit to one entry per user
* Exclusive offers or coupons: avoid duplicate uses
* Customer feedback or surveys: ensure one response per customer
* Membership applications: one submission per applicant
[ ](https://da76v9kevdkud.cloudfront.net/wp-content/uploads/2024/09/2024-09-13_17-10-22.png)
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