Update API on Gravity Forms - Wordpress Site

We have a Wordpress site and use Gravity Forms to collect registrations. After the form is submitted we use an API to push the data into our Customer Management System (CMS). We need to update this API to push some new fields that we added to the forms. This project requires writing PHP code. Project Details [login to view URL] are three Gravity Forms that will need to be updated. they are duplicates of each other. 2. The API for our CMS is located in theme/[login to view URL] 3. We've added four new product fields to our forms (see attachment): - Football Blue - Football Brown - Eye Black - Sweatshirt (need to get sizes as well) 4. We need the values of these fields added to a string and pushed into our CMS to a field called "Order Summary". I've attached a text file showing the format. 5. On the three forms these fields have different IDs. It would be easier if the fields all had the same IDs, but I couldn't find a way to change the ID once the field was created. If you can find a way to change the IDs so they match it will make it easier to write the code. 6. In [login to view URL] update the PHP code to push this new data to our CMS. The other data is already being pushed, just need to add these new fields. They should populate the field "Order Summary" 7. The field "Order Summary" already has data being pushed to it, the new data should be added to existing data. Don't replace it. Let me know if you have questions.