Add Collaborator 
Collaborators are other SAP Sourcing users within your enterprise who have access to your sourcing document. You can determine collaborators' access privileges by assigning them a role. You can add a coworker, a group of coworkers, or a company within your organization as a collaborator.
To add a collaborator:
On the Header page under Collaborators, choose one of the following:
Add User Account
Add Group
Add Company
Select the box for any user, group, or company to add. You may check more than one box to add multiple collaborators.
Select OK.
On the Header page under Collaborators, optionally select a new role from the Role drop-down list. For more information about roles, see Field Help for Document Collaborator Dialog Box.
Note
The role determines the collaborator's access to the document. Access privileges appear in the Authorization column.
Save your changes.
Note
To edit the details of a collaborator, choose the Edit icon for the collaborator to edit on the Header page.