To manage this permission please follow the below steps:
At the top, click the Admin Cogs
icon. Click Organisation Administration, and into Roles.
Edit the role of the user.
Click into the Permissions tab, on the left click Order Management.
Scroll to the bottom to the sub-heading Other.
Check or un-check the permission Change Self Managed Account Codes within Orders box.
Click Update to save any changes at the bottom.
