What is the cap on the ‘limit’ field? It isn’t marked in the documentation. Through my own testing it appears to be 500 but I want to make sure before I reject anything higher than 500. Thanks!
Hi @elliotmiller18 and welcome, we are delighted to have you here! 
Thanks for reaching out to the HubSpot Community and for your valuable feedback, it means a lot to us!
I’ll be checking internally on this for you. In the meanwhile, let’s check with our Top Experts:
Hi @sylvain_tirreau, @Anton and @zach_threadint have you used the conversations inbox and messages API? If yes, do you know about the “limit” field cap, to help @elliotmiller18, please?
Have a wonderful weekend and thanks so much for your help! 
Bérangère
Hi @elliotmiller18 and thanks for your patience!
I wanted to let you know that we heard your feedback, and we’ve made an update to the documentation:
“Conversations inbox and messages APIs”.
I can confirm that the maximum limit is 500.
Thanks again @elliotmiller18 for sharing your feedback with us. It helps improve HubSpot for our whole Community
Have a fantastic weekend and I look forward to seeing you around the Community!
Bérangère