Creating A Slicer for two PivotCharts

[Reebs]

I have two data sets with a column named identically that has very similar text values. I am having trouble creating a relationship between the two in Power Pivot and I keep getting this error "(String Review)Relationship between '*****' and '*****' is a many-to-many relationship which is not currently supported." Is there a simpler way to make one slicer control multiple charts?

 

[Tivakaran]

I'm not sure what...but you can put slicer to control both table I think