The good news is that you can use Postman to generate the curl or the Python code for you and 20 other programming languages. While using Postman solves an immediate need, a longer term solution with AnaplanConnect (Shell Scripts) or Python would be better. I have found it very difficult to knowledge transfer support of Postman to others, as Postman seems to be more of an API testing tool. Not really meant for production ready automation. Ideally, your client would use an ETL tool like Informatica, Mulesoft, or Dell Boomi, each has a built-in connector to Anaplan. From there, you can regularly schedule your script to run.