Conditionally Rolling up values from a column based on another column (Non-M approach)

Question

I have two tables (below) related by Group ID. Table one is a list of users belonging to groups. Their roles are indicated by the [Role] column. I would like to take and roll up the values from [Person Name] by [GroupID], also filtering by [Role]="GH" . The second table would be the desired result. I can do this in M by filtering Table, joining it to 2, and Grouping By. HOWEVER, I also need a column that rollus up [Role]=RWs and duplicating the large table to join it twice doesn't make sense.&nbsp;I imagine there is a way to do this both in DAX (ConcatenateX) and more efficiently in M. TIATABLE 1GroupID&nbsp; |&nbsp; Role&nbsp; |&nbsp;&nbsp; Person Name&nbsp;340&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GH&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Joe Smith340&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GH&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Tim Grogan340&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RW&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Jenny Slate240&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GH&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Barbara Wexham240&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GH&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Jimmy Neutron&nbsp;&nbsp;&nbsp;TABLE 2GroupID&nbsp; | Person Name340&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Joe Smith;Tim Grogan; Barbara Wexham240&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Jimmy Neutron&nbsp;

ahmedx · Answer

Sample PBIX file attachedhttps://dropmefiles.com/bgrhc

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