Web-to-Lead problems?

Web-to-Lead problems?

I have 3 different web-to-lead forms.
Some of their fields are the same, and other are specific for each form.

I found out that some custom field data was missing, after submitting the form.

The reason is this:

In the "Generating HTML for Web-to-Notas" I did select different fields for each form.

And the custom fields that were not selected were not saved.

So this is the tip: it is required to have checked all the fields in use in several web-to-lead forms in the "Generating HTML for Web-to-Notas" screen.