# Validate location
As the name suggests, this condition is used to validate the active location of the user filling the form against a pre defined Geo-Fence. Learn more about **Geo-Fence Field**
### What is the use case?
Whenever you want users to not submit the form if the active location is outside a predefined Geo-Fence area. Let's understand this with an example.
#### Attendance use case
* A project is being conducted on ground. A geo-fence area is defined at the project location.
* Now the On-field construction workers come to work and they need to mark their attendance at the project location.
* If the active location of the user is outside the defined geo-fence then the attendance shouldn't be marked and a proper message is shown to the user
This can be achieved using **Validate location.**
### **Over which type of field is it applied?**
The user creating the form applies this condition over a location type of field.
The user clicks on **Select Fields** to get list of all location type of fields that exists in the form being created.
### How do I set the area for validation of location?
The area for validation is set using the **Geofence** type of field. The user sets the area perimeter using the [Geofence field](https://docs.senpiper.com/form-builder/adding-fields-and-saving-a-form/building-forms#10.-geo-fence).
### How do I set this up?
Let's understand it in steps:
1. Create a **Project details** form for recording the details of the project and set this form as a [master form](https://docs.senpiper.com/form-builder/creating-forms/additional-form-settings/conditions/broken-reference).
2. In the **Project details** form**,** create a [Geofence fiel](https://docs.senpiper.com/form-builder/adding-fields-and-saving-a-form/building-forms#10.-geo-fence)d.
3. Create a submission with Construction site perimeter as a value for the Geofence field in the **Project details** form**.**
4. Create another form **Attendance** form with the Geofence field and a location field in it along with other required fields and [set the Project details **form** as a master form](https://docs.senpiper.com/form-builder/creating-forms/additional-form-settings/conditions/broken-reference) to the **Attendance** form.
5. [Map](https://docs.senpiper.com/form-builder/creating-forms/additional-form-settings/conditions/conditional-values-of-fields/master-mapping) the Geofence field of **Attendance** form with the Geofence field of the **Project details** form.
6. While creating the submission for the **Attendance** form**,** the Geofence field of **Attendance** form will have the Geo fence field value which is there in the submission created for the **Project details form** ([this form being the master form and geofence fields are mapped](https://docs.senpiper.com/form-builder/creating-forms/adding-fields-and-saving-a-form/creating-master-records)).
7. In the **Attendance** form, now we can set the condition **Validate location** on the location field and use the Geo fence field for deciding the area to be considered for location validation.
In the above image,
1. **Location** is the field over which **Validate location logic** will be applied. So by our example, Location field of **Attendance form** will be this field.
2. **Copied Geo fence is the** Geofence field with which the location has to be validated. In our example, it is the Geo fence field of the **Attendance form** whose value is mapped with the Geo fence field of the **Project details** form.
3. Error message that should be shown to the user filling up the form in case the location validation fails.
### Can I allow the user to submit the form even if the location validation fails?
Yes you can. While setting up the condition, **Validate location** the user can choose to allow the user filling up the form to create successful submission even if the validation fails.
> The user can set some condition as well to implement **Validate location** using [Enter validation condition](https://docs.senpiper.com/form-builder/creating-forms/additional-form-settings/append-values-to-a-field#what-is-the-use-case) input box shown in the below image.
>
> The user has to give the **error message** that should be shown in case the validation fails.
