Ansible AWX / Tower - Use Vault credential in playbook

In Ansible AWX I created a Vault-credential (named: user-pw). Now I want to use that password in a playbook. But it doesn't work.

I created a template, add the Vault-credential (at the credential input). In the playbook I used the variable "{{ user-pw }}" at the place where the password should be.

What am I doing wrong? How do I get the AWX Vault password in the playbook as a variable?

This is the vault credential screen:

And this is the template screen:

And this is the test playbook:

---
- name: Vaulttest
  hosts: win

  tasks:
    - name: View user pw
      debug:
        msg: "{{ user-pw }}"

Thanks in advance!

Found it! I used custom credentials the wrong way.

I created a complete new custom credential (under Administration - Credential Types).

Input configuration:

fields:
  - id: pass
    type: string
    label: password
    secret: true
required:
  - pass

Injector configuration:

extra_vars:
  pass: '{{pass}}'

Then I created the credential with the custom credential. Filled in the password.

Use the password variable in a playbook like this:

- name: Test
  module:
    username: testuser
    password: "{{ pass }}"

At last, add the custom credential to the template.