BAPI_MOSRVAPS_CREATESNPORDER only creating an order to a PDS.

Hi experts.

I'm having problems using the function module BAPI_MOSRVAPS_CREATESNPORDER in a LOOP, for creation of production orders per month, the program only creates the first order.

The structure of the PDS is as follows:

Main product - Validity: 01/01/2011 to 12/31/9999 - 1000 TO

Component Input 1 - Validity: 01/01/2011 to 01/31/2011 - 10 TO

Component Input 1 - Validity: 02/01/2011 to 02/28/2011 - 13 TO

Component Input 1 - Validity: 03/01/2011 to 03/31/2011 - 20 TO

Component Input 2 - Validity: 01/01/2011 to 01/31/2011 - 1010 TO

Component Input 2 - Validity: 02/01/2011 to 02/28/2011 - 1030 TO

Component Input 2 - Validity: 03/01/2011 to 03/31/2011 - 1020 TO

In each iteration to the BAPI, i'm filling the Head valid for 1 month.

ti_head-order_end_date = Always 1 month

ti_head-order_number = An Index.

ti_head-master_product = Main product.

ti_head-master_plant = Plant.

ti_head-master_order_quantity = Value.

ti_head-master_loctype = '1001'.

ti_head-master_atpcat = 'EE'.

ti_head-coproduct_atpcat = 'EM'.

ti_head-input_atpcat = 'EL'.

ti_head-source_name = PDS.

For the PDS above, the BAPI should have created three orders, but has created only the first.

BAPI call.

CLEAR: ti_return, ti_mapp.

REFRESH: ti_return, ti_mapp.

CALL FUNCTION 'BAPI_MOSRVAPS_CREATESNPORDER'

EXPORTING

logical_system = gc_logsys

order_type = '5'

ext_number_assignment = ' '

commit_control = 'E'

planning_version = st_otimiza-versnp

change_if_exists = ' '

check_ppm_existence = 'X'

snp_planning_profile = ' '

TABLES

order_head = ti_head

mapping_data = ti_mapp

return = ti_return.

Please Help.

Thanks in advance.