Importación de extractos bancarios españoles (Norma 43)

This module adds a new file format to the standard bank statement import screen: AEB norm 43 (.n43), the Spanish bank standard. When you import such a file, Odoo reads the account header, the movements, the concept lines and the closing records, and creates a bank statement with its transactions.

On each bank journal, in the advanced settings, a new "Norm 43 options" section appears with three settings: - Date type: whether the transaction date comes from the value date or the operation date. - Partner search: how Odoo tries to find the customer or supplier behind a movement, using the concept text. You can pick None, CaixaBank, Santander, Sabadell or All (each bank writes the concept differently). - Exclude pattern: a regular expression; lines whose reference matches it are dropped from the import.

The import checks the file's internal totals: number of debit and credit records, debit and credit amounts, and the final balance (initial balance plus credit minus debit). If anything does not add up, the import stops with an error message. The file encoding is detected automatically, and the currency is taken from the file's currency code.

It touches account.journal (the new settings), account.statement.import (the import wizard) and the bank statement import screen.