Hi all,
i also have same issues.
i want to refresh my data source from excel local files and txt files (sql query result).
but the warning appears : failed to save modifications to the server. Error returned : 'Table 'LocalDateTable_24d2e0df-15b9-4c9d-b42d-04b84b35c40d' with ShowAsVariationOnly property set to '1' must be target of a variation when variation notation is enabled.'.
pls advice.