Hi Vin,
The standard behavior of the system is not to display the Manager name in field OMNGR_NR in case if the employee havestart date that before of the start date of the manager's start date on IT0001."
However, if you have a manager who don't have any entry in IT0001 that match with the start date of the employee, then the manager name will not be displayed in the field OMNGR_NR.
In case the pernr doesn't have any manager and is the head of the Organization Unit which does not belong to any Personnel number then the field it0001_af-omngr_nr will remain blank. As the name indicates already "name of the direct supervisor" since the PERNR doesn't have any direct supervisor then this field will remain empty.
The field will only be filled if the PERNR has a direct supervisor according to his organizational unit.
If is this your issue, you are using the it0001_af-omngr_nr to find any manager that this pernr should
report, since there are no direct supervisor for this employee then the field will return no data.
The CALL FUNCTION 'HR_READ_INFOTYPE' will return the manager name only in case that the field it0001_af-omngr_nr have a direct manager, that in this case don't have, the field it0001_af- omngr_nr return '000000' as PERNR, so manager was found. This is the standard behavior of FM RH_TEXT_GET_P0001_AF.
Regards,
Nishtha