Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE Financial_transactions ( invoice_number VARCHAR )
TABLE: CREATE TABLE Invoices ( invoice_number VARCHAR, invoice_date VARCHAR )

### Question ###
What is the invoice number and invoice date for the invoice with most number of transactions?

### Accurate SQL ###

SELECT T2.invoice_number, T2.invoice_date FROM Financial_transactions AS T1 JOIN Invoices AS T2 ON T1.invoice_number = T2.invoice_number GROUP BY T1.invoice_number ORDER BY COUNT(*) DESC LIMIT 1