Including Co-Marketing Clauses in Contracts: Industry Norms and Practices Discussion

Hi All! Do your teams include any kind of co‑marketing clause (e.g., case study, testimonial, or press release) in your standard contracts? If yes — is it: • mandatory, optional, or mutually agreed‑upon? • something customers commonly accept, or frequently negotiate out? Trying to understand industry norms and the range of how teams structure this. Any insights or experiences are super helpful!