small php and html edit

this task is for some a simple php/html edit. We have a website that communicates to our CRM ([login to view URL]) thru our webforms. We need to change some of the coding. If you are familiar with using API's this should be a very simple task for you. We're looking for someone who is really an expert with php/html and familiar with API systems. here are some douments realted to their API system [login to view URL] [login to view URL]