Hi Samir,
Sure you can use in the above dynamic action itself.Use the functional module before you the step where you use function I to create the record in 2006.
| 0000 | 04 | 23 | F | GET_DATE(HBRDYNMS) |
The above one is a sample step and here you can call your own functional module written by your ABAP consultant and default the value returned from the functional module to the field P2006-ANZHL.
Regards,
Mithun K