From the OHC site, it is possible to make modality assignment modifications (MAM) from the OHC portal. This functionality is intended for Power Users and Middle Users. This article will define how to adjust the rights of your users.
To modify the rights of a user, the Power User attached to your market must edit the account concerned. The user must be at least Middle User (Warning: a Power User cannot change the rights of another Power User so you must always ask yourself the question of changing the role of one of his users to Power User) and must check the market (s) he wishes to assign to you on the right side of the screen.
Once the box or boxes have been checked, the modified user will be able to carry out MAM online. Conversely, it is possible to uncheck the boxes to withdraw rights from an employee.