All the localisation should be written in english and then translated to the native language of the country. In this case, the mexican localisation was written is spanish, this PR translate all the module in english and add the corresponding PO file in spanish. closes odoo/odoo#108725 Task-id: 3089239 Related: odoo/enterprise#35247 Signed-off-by: Laurent Smet <las@odoo.com>