In Excel, I am able to use the MAX/IF array function to look at Cell A2 (product number), look through all of column A for matching product numbers, and look at column B to find the max date for that serial number. This would go in cell C2 and the function would repeat for each cell in C looking next at A3, A4, A5, etc. to pull the max date. Quick example - The max DATE for each PRODUCT is in RED:
| PRODUCT | DATE | MAX DATE |
| ABC | 12/31/2016 | 12/31/2017 |
| DEF | 1/1/2014 | 12/31/2017 |
| ABC | 5/31/2015 | 12/31/2017 |
| XYZ | 6/31/2015 | 8/1/2017 |
| DEF | 7/21/2012 | 12/31/2017 |
| XYZ | 4/1/2011 | 8/1/2017 |
| DEF | 5/31/2016 | 12/31/2017 |
| DEF | 12/31/2017 | 12/31/2017 |
| ABC | 12/31/2017 | 12/31/2017 |
| DEF | 1/1/2015 | 12/31/2017 |
| XYZ | 8/1/2017 | 8/1/2017 |
| ABC | 9/31/2016 | 12/31/2017 |
| XYZ | 7/31/2014 | 8/1/2017 |
| DEF | 1/1/2015 | 12/31/2017 |
| DEF | 3/1/2011 | 12/31/2017 |
I have been hammering away trying to reproduce in power query/power BI and have not been successful. I am new to the software and community (though I have been using power query through Excel for a year or so now) so excuse any ignorance in my post! Thanks in advance for any help!
**UPDATE** - I was able to recreate using a measure but I cannot figure out how to get the Max Date loaded into a new column from the measure.
Tom