I have a main fact table which has a dd mmmm yy Date format, and a full Date table (with hierarchy) which I use as my date filter.
I also have a secondary table which has an unusual date format that I've had to massage into the Period.Formatted column shown. I've added the Month and Year columns using Power Query.
There is a relationship between the two using the Brand column. PBI will only let me use Many-to-many as there are multiple rows per month in the secondary table due to the Confidence and Type columns. Using a slicer on Brand works to filter both tables so that's something.
In this example, the Value column is ignoring the slicer and showing the sum all available data. In this example, I have added a further slicer on the Month column from the secondary table, which then shows the correct value.
How can I get the secondary table to filter correctly based on my original slicer (top-right in screenshots, showing "between" for January)? I feel like it's a relationship issue but if I move the relationship to Date instead, my test measure (Theoretical Income) is showing incorrect figures.
Where am I going wrong?
