When you say standard agreement, do you mean the marketing language in your customer contracts? Or are you thinking more along the lines of a secondary contract that is shared with individual advocates, more like an asset release form?
Ah good clarification - more the second one! A contract shared with individual assets clarifying what they're signing up for and commitments on both sides. (e.g. compensation provided, advocacy expected, etc)
Those kinds of contracts aren't popular, in my experience. Unless you have some kind of referral program, with T&C, I don't normally see the use of a contract with advocates for a specific level of advocate engagement.
Asset release forms are used when there's something published, like a video or case study.
This may help. It's more about writing a detailed brief so you know you're aligned before you begin a partnership, rather than focusing on contractual terms.
This is a webinar I produced a while back, which resonated with me for getting a true partnership going with Ambassadors/creators.
