> For the complete documentation index, see [llms.txt](https://docs.quantumbyte.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.quantumbyte.ai/home/quantumbyte-v2.0/2.builder/1.frontend/6.formulir/3.validation.md).

# Validation

This is the section where you set up the input validation rules for your form fields.

<figure><img src="/files/XNab97k8aGUT6EgVNLnf" alt=""><figcaption></figcaption></figure>

### Valdiation Setup

1. Please make sure you have already created a form and added a field to it, as shown in the following image.

<figure><img src="/files/DSYtUSZb1u9WGme7Wf2n" alt=""><figcaption></figcaption></figure>

2. Click the **"Setup Komponen" (Setup Component)** button.
3. The form setup panel will appear, allowing you to configure the field.

<figure><img src="/files/93qgYs6CS7hVrSF9ZEOc" alt=""><figcaption></figcaption></figure>

4. Select and choose the appropriate form type (*e.g., standard, time, media, camera, location, dynamic, built-in, or external/internal data*).
5. Once selected, click "**Next**" to proceed to the validation stage.

<figure><img src="/files/KI2HhGjn2hhonleLFrXG" alt=""><figcaption></figcaption></figure>

Now, define the type of validation for your field. You have 6 validation options:

1. **Required**: When activated, this means the field cannot be left empty and must be filled out.
2. **Text**: When activated, you can set the minimum and maximum allowed length for the text.
3. **Number**: When activated, you can set the minimum and maximum allowed numerical value.
4. **Image**: When activated, you can set the maximum file size for an uploaded image.
5. **File**: When activated, you can set the maximum file size and the allowed file formats (*e.g., .pdf, .doc*) for upload.
6. **External Validation**: When activated, you can set up validation based on an external endpoint (API). This endpoint must return a JSON response in this format: `{'status': true/false, 'msg': 'Success Message'}`.


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