How do I find the total of a Matching String's related field

[Ghosh612]

I have this problem and I am trying to find a way for this, below is my data:

The case is, how do i find Nick Crebassa's total call length.

This is what I am trying to do with tmap and taggregaterow: Sum of 'Call Length in minutes', Where Customer Name=="Nick Crebassa", 

thank you.

[manodwhb]

Use taggregaterow and do group by costomername and do sum on call length in minutes and if you want to convert to hours then use tampons or tomorrow to convert sum of call length in minutes/60 .

[Ghosh612]

but what about Group by Customer Name where Name == "Nick Crebassa"? Where do I use the expression?

[manodwhb · Accepted solution]

You want to find sum of call length only for "Nick Crebassa" ? Then you can do filter before taggregaterow.

[Ghosh612]

Thank you, this works. Understood how the grouping works.