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Hi  Anonymous ,

I created some data:

Custom rules:

Find the largest value of [Group2], which is displayed in [Group1].

Here are the steps you can follow：

1. Create measure.

Measure =
var _table1=
SUMMARIZE('Table','Table'[Group2],"sum",SUM('Table'[Value]))
var _group2max=
MAXX(
    _table1,[sum])
return
IF(
 ISINSCOPE('Table'[Group1]),_group2max,MAX('Table'[Value]))

2. Result:

If I have misunderstood your meaning, please provide your pbix file without privacy information and desired output.

Best Regards,

Liu Yang

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