What is difference between Quick Convert and Convert for Pending Employees

Summary:

We typically use Convert to on-board Pending employee in HCM. For 3 employee, by mistake, Quick Convert was used and now these employee have issues in Procurement. Their purchase requisition gets error that name and email do not match with what was entered in HCM.

Content (required):

How can I synchronize name and email for these 3 employees who were on-boarded with Quick Convert. Is there a process that can be run now for this. We can not terminate these employee records and re-do on-boarding as they have been assigned benefits, payroll etc.

Version (include the version you are using, if applicable):