Error Message: "We couldn’t create the configuration. Try again" in Field Service Mobile App Builder

When attempting to create a new configuration in the Field Service Mobile App Builder, users may encounter an error message stating: "We couldn't create the configuration. Try again."

Steps to Reproduce

1. Log in to the Salesforce org.
2. Navigate to Setup.
3. Access Field Service Mobile App Builder.
4. Click New Configuration.
5. Enter the required values in the App Name and API Name fields.
6. Attempt to save the configuration.
7. The error message appears: "We couldn't create the configuration. Try again."

Root Cause

This error is caused by a missing org permission called ExperienceContainer. The ExperienceContainer permission controls the ability to view, edit, and delete Experience Containers within a Salesforce org. Experience Containers are required by the Field Service Mobile App Builder configuration process. When this permission is absent, the configuration cannot be created and the error is returned.
Investigation of Chrome network logs during the error reveals the underlying permission error with the message: "ExperienceContainer org permission is needed to view/edit/delete Experience Container."

Error Analysis: Upon investigation of the Chrome network logs, the error message may include the following details,

"actions": [
    {
      "id": "3591;a",
      "state": "ERROR",
      "returnValue": null,
      "error": [
        {
          "message": "\"ExperienceContainer\" org permission is needed to view/edit/delete Experience Container"
        }
      ]
    }
  ],