Help with Select Expression

I have a table called Line items where I record the individual items of an invoice from a supplier.

I then have an additional table, called [Daily Invoices]where I want to save the total and take a photo of the invoice for saving.

In my total table I put the following expression

(Line Items[Cost],
Line Items[Invoice No]=Daily Invoices[Invoice No]))

I get the ok from the expression assistant but nothing happens when I open up the Daily invoice Table and input the Invoice number of the line items I just added in.

Is there something wrong with this expression?


Expression of the form table[column] returns a List of ALL values in column for the entire table.

You want this instead:

(Line Items[Cost],
[Invoice No]=[_THISROW].[Invoice No]))

Thanks for the help!

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