Does a person automatically move to another payroll during a global transfer?

If the global transfer happens within the same legislative data group, then the payroll attributes are defaulted or copied depending on the transaction done by the user.

If you use the Local and Global Transfer flow, the payroll attributes are defaulted from the source assignment. If you use the Mass Legal Employer Change flow, the payroll attributes are copied from the source assignment to the new assignment, provided the user hasn't entered any override values.

If the global transfer doesn't happen within the same legislative data group, then the payroll attributes are not defaulted or copied.