The Web Link field lets users reference an external web resource such as a web page, pdf document, Youtube/Vimeo video, image, or any other public URL. This could be used on a form to link to external resources or further instructions for your users in the field.
The Web Link URL source can be hard-coded in the field settings in the Portal as a Static or Dynamic Web Link that pulls field data in the form to populate the link. The Dynamic Link will allow for use cases such as Lookup Data that drives a product image. It can also reference computed fields to dynamically generate a URL source.
"Static Web Link"
"Dynamic Web Link"
