Yes, somewhat, but Enum.into only fills up a single map.
You want a list of maps as a result. That’s why you should be using Enum.map. You need that but you are giving it the wrong 2nd argument. It must be a function, not a map.
Do you know how to pass a function as an argument to another function?
|> Enum.map( fn item -> {"Customer", item["value"]} end)
which give me
[
{"Customer", "EOG.Acme.ManualXML"},
{"Customer",
"{\"variables\":{\"CUSTOMER\":\"EOG.Acme.ManualXML\",\"VERSION\":\"Version-8.6.2\"},\"id\":\"5112\",\"ref\":\"main\"}"},
{"Customer", "Version-8.6.2"}
]
I do want
[
{"Customer", "EOG.Acme.ManualXML"},
{"Version", "Version-8.6.2"}
]
do I have to use some kind of if statement on item[“key”] = “CUSTOMER” etc.
No, this is a single record. If you put |> Map.new() at the end of the above processing you’ll get a single map. To have a list of maps / records then use Enum.map.
Look, I can give you the solution in a minute but IMO you should practice Elixir more, it’s really easy.
One tip, ask chatgpt how to do something in elixir, it can be your pair programmer who does nothing but knows everything. 
Honestly though if you’re this new to the language… don’t. ChatGPT is as often wrong as it is right with Elixir and if you’re at the phase where you’re not sure how to pass a function to Enum.map, how are you supposed to tell the difference?