Input fields are areas on a contact form that collect information about visitors, such as name, company, and job title.
They play an essential role in identifying users and allow you to adapt your marketing or sales activities to their individual needs.
However, there is a negative correlation between the number of fields and the conversion rate.
In order to maximize form submissions, it is important to find a balance between your need to know visitors and the negative effect of multiple form fields: a HubSpot study showed that the optimal number of input fields was 3. (Beyond that the conversions collapse)
The higher your information requirements, the lower the submission rates for your landing pages will be.