Implement invoice payment

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This document describes the steps to consider implementing the invoice payment method without integrating with a third-party payment service provider.

If this is your first time creating a new module, see Tutorial: Add a new module.

Implementation order

The order of the implementation steps does not matter; however, ensure to complete all the steps.

  1. Implement invoice payment in frontend.
  2. Integrate invoice payment into checkout.
  3. Implement invoice payment in backend.
  4. Implement invoice payment in shared layer.
  5. Test the invoice payment implementation.