Problem with HR_INFOTYPE_OPERATION

I use the FM 'HR_INFOTYPE_OPERATION' to create an Infotype 179 record.

However, when I execute my code, it said 'Make an entry in all required fields.'.

Then I set the FM display_mode to '2' and execute, it shows that the Tax number field (an required field) is empty. However, I'm sure that I pass in all the required field into the FM's parameter(record).

Anyone know why this happen? Is it cuased by the system itself?

Message was edited by:

Irene Sam