help me with this error

[Former Member]

hi to all experts,

im getting this error when i use session method

error is bdc_insert session can't be opened

HERE IS MY CODE

report ZMAT_UPLOAD

no standard page heading line-size 255.

****************************************************

types declaration********************************

***************************************************

TYPES : BEGIN OF TY_MAT,

MATNR(18),

MBRSH(1),

MTART(4),

MAKTX(40),

MEINS(3),

END OF TY_MAT.

DATA: IT_MAT TYPE TABLE OF TY_MAT,

WA_MAT LIKE LINE OF IT_MAT.

include bdcrecx1.

************************************************************

start-of-selection.

CALL FUNCTION 'GUI_UPLOAD'

EXPORTING

FILENAME = 'C:\FF.TXT'

FILETYPE = 'ASC'

HAS_FIELD_SEPARATOR = ''

• HEADER_LENGTH = 0

• READ_BY_LINE = 'X'

• DAT_MODE = 'DAT'

• CODEPAGE = ' '

• IGNORE_CERR = ABAP_TR2UE

• REPLACEMENT = ','

• CHECK_BOM = ' '

• IMPORTING

• FILELENGTH =

• HEADER =

TABLES

DATA_TAB = IT_MAT

EXCEPTIONS

FILE_OPEN_ERROR = 1

FILE_READ_ERROR = 2

NO_BATCH = 3

GUI_REFUSE_FILETRANSFER = 4

INVALID_TYPE = 5

NO_AUTHORITY = 6

UNKNOWN_ERROR = 7

BAD_DATA_FORMAT = 8

HEADER_NOT_ALLOWED = 9

SEPARATOR_NOT_ALLOWED = 10

HEADER_TOO_LONG = 11

UNKNOWN_DP_ERROR = 12

ACCESS_DENIED = 13

DP_OUT_OF_MEMORY = 14

DISK_FULL = 15

DP_TIMEOUT = 16

OTHERS = 17

.

IF SY-SUBRC <> 0.

• MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

• WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

Perform open_group.

LOOP AT IT_MAT INTO WA_MAT.

perform bdc_dynpro using 'SAPLMGMM' '0060'.

perform bdc_field using 'BDC_CURSOR'

'RMMG1-MTART'.

perform bdc_field using 'BDC_OKCODE'

'/00'.

perform bdc_field using 'RMMG1-MATNR'

WA_MAT-MATNR.

perform bdc_field using 'RMMG1-MBRSH'

WA_MAT-MBRSH .

perform bdc_field using 'RMMG1-MTART'

WA_MAT-MTART .

perform bdc_dynpro using 'SAPLMGMM' '0070'.

perform bdc_field using 'BDC_CURSOR'

'MSICHTAUSW-DYTXT(01)'.

perform bdc_field using 'BDC_OKCODE'

'=ENTR'.

perform bdc_field using 'MSICHTAUSW-KZSEL(01)'

'X'.

perform bdc_dynpro using 'SAPLMGMM' '4004'.

perform bdc_field using 'BDC_OKCODE'

'=BU'.

perform bdc_field using 'MAKT-MAKTX'

WA_MAT-MAKTX .

perform bdc_field using 'BDC_CURSOR'

'MARA-MEINS'.

perform bdc_field using 'MARA-MEINS'

WA_MAT-MEINS .

perform bdc_field using 'MARA-MTPOS_MARA'

'NORM'.

perform bdc_transaction using 'MM01'.

perform close_group.

ENDLOOP.

[Former Member]

look at the Statement before ending loop;

perform close_group.

you shouldn't end-up your session till the last record data,

check the same by replacing the above function after ENDLOOP statement

and grant me the points accordingly