Using the generate method of Accounts.report, for the following dimensions / sort values
HOSTED_AD_CLIENT_ID
CUSTOM_CHANNEL_ID
CUSTOM_CHANNEL_CODE
CUSTOM_CHANNEL_NAME
URL_CHANNEL_ID
URL_CHANNEL_NAME
the following error is raised
(400) Request contained conflicting filters, conflicting dimensions, or a conflicting combination of both.
The message refers to a conflict; however, the error is also raised in the case of a single dimension and/or with no filters, i.e. in the case where there is no other dimension or filter with which to conflict.
Are the above dimensions not supported? All are listed in the docs at https://developers.google.com/adsense/host/v4.1/accounts/reports/generate .