How to update info object attributes using Abap

Hi All,

I have a reqirement to update master data info object's attributes using Abap program. Currently we are in BW 7.3 version. I have tried the following options with no success.

[a] Using internal table.

I have declared an internal table with the exact fields of the info object's P table /BIC/PZ* & then poplated the vales in the internal table.

I have used the regular Abap statement. While updating the internal table I have tried OBJVERS = 'A', OBJVERS = 'M', and OBJVERS =''. as well. But no luck.

update /BIC/PZ* from table it_table.

While debggin the Abap program, post execution of the update statement, I am getting the sy-subrc = 4.

[b] Using the Function Module RSDMD_WRITE_ATTRIBUTES_TEXTS

I have created the internal table to similar to the table /BIC/PZ* & passed the internal table while calling the function module RSDMD_WRITE_ATTRIBUTES_TEXTS with no luck.

CALL FUNCTION 'RSDMD_WRITE_ATTRIBUTES_TEXTS'
  EXPORTING
    I_IOBJNM                        = '<info object name Z*>'
    I_TABCLASS                   = 'M'
*   I_T_ATTR                        =
*  I_S_MINFO                      =
*   I_REQUNR                      =
*   I_DATAPAKID                 =
*   I_MONITORING              =
*   I_CREATE_STATISTICS          = RS_C_TRUE
* IMPORTING
*   E_T_IDOCSTATE                =
*   E_SUBRC                      =
  TABLES
    I_T_TABLE                    = it_table
EXCEPTIONS
   ATTRIBUTE_NAME_ERROR         = 1
   IOBJ_NOT_FOUND                        = 2
   GENERATE_PROGRAM_ERROR = 3
   OTHERS                                         = 4

After executing this function module the master data table is not getting updated.

[c] I have used the function module RSNDI_MD_ATTRIBUTES_UPDATE as mentioned below with no luck

CALL FUNCTION 'RSNDI_MD_ATTRIBUTES_UPDATE'
  EXPORTING
    I_IOBJNM                          = '<info object name z*>'
    I_UPDATE_ALL_ATTRIBUTES           = 'X'
*   I_CLEAR_UNMAPPED_ATTRIBUTES       = RS_C_FALSE
*   I_CHAVL_ENQUEUE                   = RS_C_TRUE
*   I_DB_COMMIT                       = RS_C_FALSE
*   I_COMMIT_WORK                     = RS_C_FALSE
*   I_PROTOCOL                        = RS_C_FALSE
*   I_NO_APPL_LOGGING                 = RS_C_FALSE
*   I_ACTIVATE_MD                     = RS_C_FALSE
* IMPORTING
*   E_SUBRC                           =
  TABLES
*   I_T_ATTRIBUTES                    =
    I_T_DATA                          = it_table
    E_T_MESSAGES                      = .

In all the three options I have mentioned above, I am not sure what is missing.

Can any one check and let me know in the above three options what I did wrong ?. Also, if there is any other funtion module, provide me the sample code.

Thanks in Advance,

Spring