I hope this message finds you well. I am reaching out to seek assistance regarding an issue I am encountering while working with the YouTube API.

Issue Description:
When attempting to create a broadcast on behalf of a parent account using the YouTube API, I am encountering an error message indicating that the specified content owner account was not found. The error message received is as follows:

{
"code": 404,
"errors": [
{
"domain": "youtube.parameter",
"location": "onBehalfOfContentOwner",
"locationType": "parameter",
"message": "The specified content owner account was not found.",
"reason": "contentOwnerAccountNotFound"
}
],
"message": "The specified content owner account was not found."
}
Steps to Reproduce:

Authenticate with the YouTube API using appropriate credentials.
Attempt to create a broadcast on behalf of a parent account using the onBehalfOfContentOwner parameter.
Receive the error response indicating "contentOwnerAccountNotFound".
Additional Details:

The user added to the parent account has been assigned the role of editor.
Permissions have been verified for the authenticated user.
The content owner ID provided in the API request belongs to the parent account where the broadcast should be created.

I kindly request your support in resolving this issue. It's crucial for our project to be able to create broadcasts on behalf of the parent account programmatically. If there are any specific configurations or steps that need to be followed to ensure the successful creation of broadcasts, please provide guidance accordingly.

Your assistance in this matter is highly appreciated. If you require any further information or clarification, please don't hesitate to ask.