I need to create custom properties for Contacts, Deals, Line Items, and Products. But, I do not want to have to create them 1 at a time. So far, the only API call I can find allows for the creation of a single property per API call. I have about 100 properties total that I need to create, and I will have to do it in 2 different environments (dev and production).
Is there a way to create multiple properties at a time? Or do I need to create them one at a time?