I can not for the life of me get report custom URL filters to work. The instructions aren't too clear, which doesnt help. Examples in other posts indicate you should be able to get the URL of any report, including the page, and then add a string of the form:
?filter=[TableName]/[ColumnName] eg Value.
I have tables with Underscores in the name, and columns with underscores, and so I want to add:
?filter=_Programs/Program_Code eq ABCD
but this does not seem to work for any combination I try. Has anyone got this to work?
Does the table/column combination already have to be set as a Page Filter or Report filter for this to work?
Does the Value for the filter have to be in quotes or not?
Does the custom URL need to be saved somewhere for the service to recognise it? The first step in the instructions vaguely implies you need to edit the report and add the filter, but that doesnt really make sense.