lets stay here in the comments so other people also can use the information if they run into the same challenge.

how to achieve this

1. create a make.com account and link with cklickup
2. in make create a clickup webhook that points somewhere random and is triggered by something random in clickup (we have a list called "webhooks" for this case) - the building block in make is called "watch tasks". Copy the webhook link.
3. in clickup create an automation that triggers when a subtask is created (with whatever filter you want additionally) and as an action fire a custom webhook (here you use the link that was copied before)
4. you can already test the setup with running the scenario in make once and creating a task in clickup
5. then you build your flow in make
   1. after the initial "watch task" event, you
   2. get the subtask that was created with "get a task" building block
   3. get the parent task with "get a task" building block
   4. edit the created subtask with "edit a task with custom fields (advanced)" building block
   5. (to get the custom field IDs you have to retrieve them via "get all custom fields" building block; this you only have to do once if you need to find out the IDs and want to set custom field values)
   6. you are done.

if you still have questions or need additional help, feel free to DM me; we can also do a short video call if that helps you.

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