Is there any way to update length of all accounting chart and not one per one?

Hello,

There are no restrictions or conditions in odoo that require a 6-digit account code to be followed. By default, it comes with 6 digits, but it can be modified based on the company's needs. To update the code in bulk, you can use the export option with the external ID and account code. Adjust the code to 7 digits as needed and then import it back along with the external ID.

Hi Luis:

The account number is not constrained to 6 characters.

You can update the Chart of Accounts with your 7 character account codes by going to either Invoicing > Configuration > Chart of Accounts or Accounting > Configuration > Chart of Accounts depending on whether you are using Odoo CE or EE. In Odoo CE, you will need to add the user to the Show Full Accounting Features security group for the Chart of Accounts menu to be visible.