25D - Document Types Categorization - Limit upto 20 documents

Hi,

In the 25D release feature - Document Types Categorization, the document highlights that we can define up to 20 documents for recruiting. Can someone please clarify if the limit is for 20 documents which requires validation, or 20 documents as a whole? What if we have more than 20 documents?

Redwood Experience: Document Types Categorization

<span class="ph" id="Numd22e18">How do I define document types to be used in application flows?</span>

Thanks