We have subcontractors doing work for our company, and all of the information is exchanged between e-mails. I found out that every time someone asks for info, we need to look back at our e-mail, then copy-paste the info.
What is not good is that some of the info is outdated, as people may refer to older emails and there are some corrections on later emails. In summary, all the information is scattered in our emails and some of the deliverables are sent via email.
We have JIRA and a git repository but I don't think management will be ready to expose and give access to external subcontractors.
How do you effectively manage the information and change requests for subcontractor work? I am planning to have a centralized system (like a wiki or shared google docs for the information and a version control system for the deliverables) specifically for outside work from subcontractors wherein the access will be restricted to every subcontractor we are dealing with. But I am not sure if that is the right path.