RISE: Is a partnership agreement obligatory?

The partnership agreements are not mandatory but are strongly recommended - see Guide for Applicants:
It is also strongly encouraged to conclude a Partnership Agreementt with the TC partner organisations to determine clear and transparent rules governing the internal relations between MS/AC beneficiaries and TC partner organisations (e.g. use and distribution of funding, legal issues, IPR, confidentiality, scientific responsibilities to implement action tasks, compliance with grant agreement obligations, etc.).