I'm looking for a bit of help. I'm new to using powerbi and come from a background on excel so as you can imagine, I'm having a little trouble adjusting.
I want to be able to select a date range and have a visual show me how often customers had to call me.
something like:-
1 call = "this many"
2 calls = "this many"
3 calls = "this many"
4 calls = "this many"
What I have so far is a table with all my call data with an identifier and date/time for each customer contact and a seperate table distinctly listing my identifiers. I want to create a measure on the second table that will tell me how many times each of the distinct identifiers appears in the first table. Idea being that when I select a date range on my visual, the measure on table 2 will adjust to count within that. I feel as though I'm missing something very important though.
I've tried to do the following:-
Measure = COUNTROWS( FILTER ('table1' , 'table1' [identifier] = 'table2' [identifier]))
This gives me the following error:
"A single value for column 'Account Number (Account)' in table 'Unique Accounts Table' cannot be determined. This can happen when a measure formula refers to a column that contains many values without specifying an aggregation such as min, max, count, or sum to get a single result."
I get a red underline under 'table2'[identifier] as well.
Anyone able to point me in the right direction with this one?
Thanks