Belgian payroll settings now show the letter prefix next to each FFE code option. This makes it easier for users to identify and select the correct code, reducing confusion during payroll configuration.

Prefix the FFE code selection field labels with their corresponding letters (C, B, N, O).

The payroll and payroll accounting setup data used for internal population and benchmarking has been adapted to a newer format. This keeps HR payroll test and demo data generation aligned with the broader platform changes, supporting smoother maintenance and validation.

See community PR https://github.com/odoo/odoo/pull/276538 for more info.

task-6303351