This is not a biggie. However, some conflicting info here.
Your site reference seems out of date. Last published date was Nov 14, 2024.
Navigating the NCAA Transfer Portal is easy with the right information • Make sure you understand key rules, maintain your eligibility, and stay ahead of important deadlines.
sportsrecruits.com
The reference I posted states:
"Before the January 2026 NCAA convention,
Division III schools were allowed, but not required, to enter such a student into the portal.
[10] A proposal to require use of the portal in that division was approved at the convention. The timeline for D-III members to enter athletes into the portal differs from that of the other divisions. Athletes wishing to enter the portal must first complete an educational module. Once completed, the school has seven calendar days to enter the athlete's transfer request into the portal.
[11]"
en.wikipedia.org