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# Form input parameters
## Form input parameters
To pass parameters via the URL to the form, we need to define a variable or add a component to which we want to pass this parameter.
In the application edit view, in the left menu, select the option **Input parameters**, and then **Add input parameter**. As the value **Alias** we provide the name of the injected variable alias. **Alias** will be part of the URL to the application page. As **Request component** we choose a field from the application or a session variable. We can also assign it a default value, which will be used if the parameter is not passed in the URL.
Figure 1. Form input parameters
### **Ways to pass parameters**
1. Passing the parameter directly in the URL:\
\
{% hint style="danger" %}
**Passing the parameter**
The parameter must be passed correctly in the address. Correct example: . The parameter must be before #.
{% endhint %}
2. Passing the parameter as a hidden input field:
```
```
### Input parameters of composite components
You can find more information in the section [Input parameters of a composite component](/documentation/documentation-en/budowanie-aplikacji/interfejs-uzytkownika/komponenty-rozszerzone/komponenty-zlozone.md#parametry-wejsciowe)
\
---
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