Which field type is compatible with HTML usage in NetSuite?

The field type that is compatible with HTML usage in NetSuite is the rich text field. This field allows users to enter and format text using HTML tags, enabling the inclusion of various text styles, links, images, and other HTML elements. Rich text fields are particularly useful when there is a need for more complex content presentation, such as in customer records or email templates, where visual formatting is beneficial.

While formula fields can display dynamic content, they primarily handle numerical and textual data without the capability to implement HTML formatting. The formula (text) field, for instance, outputs basic plain text and does not interpret HTML tags as formattable elements, thereby limiting its use for any advanced layout or styling.

Text areas, although capable of accommodating larger blocks of text, do not support HTML formatting either. Instead, they treat the input as plain text, which means that any HTML tags included would be displayed as readable text instead of rendering as intended.

Thus, the appropriate choice for fields that require HTML compatibility is the rich text field.