Cannot deduplicate join matches

Hi ,

I am trying to use dataiku to make bank reconciliation

I have a dataset with my invoices (invoices) and a dataset with my bank statement (bank_statement).
invoices contains a column with the amount (invoices.amount) and and sent_date (invoices.sent_date)
bank_statement contains a column with the amount ( bank_statement.amount) and one with the payment_date ( bank_statement.payment_date)
I tried to join every row of the invoices dataset with the one on the bank_statement wich has the same amount and the nearest date

I tried a join recipe (left join) of invoices with bank_statement
with all the following conditions
invoices.amount = bank_statement.amount : match all value within range of 1 (because of possible rounding on one side or another)
AND
invoices.sent_date = bank_statement.payment_date : match the nearest date , force single match in case of equality ( because one bank row can only be corresponding to one invoice), maximum difference for a match = 10 days
AND
invoices.sent_date <= bank_statement.payment_date ( because the payment is always made after the invoice or on the same date)

But I have an error message : "cannot deduplicate join matches"

I browsed this forum ( and the web) but I did not found anything about that.

Tank you for your precious help

David