This requirement or scenario is unorthodox / nonstandard
1. Transports are for dev objects (e.g., programs, functions, table definitions, etc), configuration tables/views; DEFINITELY NOT FOR DATA - in PA or PD (e.g., employee infotype records - P0000, P0001, etc, Org unit/Position infotype records - HRP1000, etc)
2. Data is created in each system/client. Employees, related PD records can be exported from Prod to Dev test, Test system, through tools like INFOSHUTTLE, DataSync Manager. They are NOT TO BE EXPORTED TO PROD SYSTEM. Prod system is set not to be exported to as a standard procedure.
3. Some times when you assign an employee to a new position, the process of delimiting the old position relationship is not completed due to various reasons - e.g., someone holding the position record in maintenance mode, delimit action not completed due to an error, etc.
In such a case, go to the position record in PO03 txn, delimit the relationship on the new assignment date; and if another person is not in the same position(as in the case of some organizations, more than one person may be assigned to one position like Clerk xxx unit), or if required set it as vacant.