Data upload from third party system to GRT table.

Hello,

Can you please let me know how we can upload payroll data from a legacy system (to be more clear, how to upload data that we receive from a third party system) into GRT table.

Note:The file should be tab delimited text file.

As of now, i figured out 2 FMs which I thought can be used.....BAPI_EXTPAYROLL_INSERT_OUT and BAPI_EXTPAYROLL_INSERT_LEGACY.

Please let me know the steps to upload the same (start to end). A code snippet will be of much help to me.

Regards,

RK