Use a service account instead of the admin account for communication between services

[Barsonax]

Currently the admin account is used by commerce to communicate to sitecore. This is not a best practice and also causes problems if the admin account credentials are changed.

Create a new service account and let commerce use this account.

[Barsonax]

Possible solutions: -SQL query: https://stackoverflow.com/questions/43286234/create-user-in-sitecore-using-powershell -Sitecore powershell extensions

[joostmeijles]

This is only a concern for production environments. As this repo tries to be unoppionated, prefers to rely on the default setup, and is currently meant for development purposes only; a service account should be added in the project specific setup.