Within Access Financials, you cannot delete a user from the system. If the user is no longer required, then their access should be removed from within Access Evo and moved to a security profile with no access within Access Financials
Remove the user's access from Access Financials
Log into Access Evo.
On the Members tab, find the user that needs to be removed.
On their record, click the Ellipsis(...) icon, and select Manage Roles.
Within here, find the database(s) you wish to remove access to and set them to No Access.
Click Save Changes.
Move the user to a different security profile in Financials
Click System, Security, Users
Find the user and click Edit
In the Records section, change the Security Profile to a different one and click Save.