Add new form and tree views for snailmail.letter available in Accounting > Configuration > Management > Snailmail Letters Add a many2one field to snailmail.letter to link to a mail.activity in case of an error with snailmail Task #1892473
Add new form and tree views for snailmail.letter available in Accounting > Configuration > Management > Snailmail Letters Add a many2one field to snailmail.letter to link to a mail.activity in case of an error with snailmail Task #1892473