I am still figuring out Power BI. I have got seemingly a very simple task: make a visual table in report view include a column from another table.
I have got:
GL - a table with invoice information, including client ID
NC - a table with credit note information, including client ID
Clients - a table with client ID as a unique identifier
Tables are not merged, but I made relationships in model view via Clients table. In the report view, I have made a table based on GL, which shows distinct count of invoices per client. I have also included a calculated column showing a ratio of credit notes to invoices like this:
Ratio NC/INV =
VAR ClientNumber = 'GL'[ClientID]
VAR TotalInvoices =
CALCULATE(
DISTINCTCOUNT('GL'[Invoice number]),
FILTER('GL', 'GL'[ClientID]=ClientNumber)
)
VAR TotalNC =
CALCULATE(
DISTINCTCOUNT('NC'[NC number]),
FILTER('NC', 'NC'[ClientID]=ClientNumber)
)
RETURN IF(OR(TotalNC=0, TotalInvoices=0), 0, DIVIDE(TotalNC, TotalInvoices))
What I am not able to do is include a column in the same visual, showing distinct count of credit notes from NC. I tried as a calculated column and as a measure:
TotalNC = CALCULATE( DISTINCTCOUNT('NC'[NC number]), ALLEXCEPT('NC', 'NC'[Client ID]) )
Neither worked. Instead of giving a distinct count per line (per client), it gives me the total count of NC in every line. The only way it works correctly if I make a direct many-to-many relationship between NC and GL. But obviously then other things break down in my report 🙂
Please help!
