check not triggering

[Former Member]

hi experts,

I want to put check on quantity field of goods movement screen of co11n transaction if material exists.

I am using the fiedexit & below code to read values & put check.

DATA: i_dynfields TYPE TABLE OF dynpread WITH HEADER LINE,

num TYPE i,

v_erfmg TYPE mb_erfmg.

DO 11 TIMES.

num = sy-index.

i_dynfields-fieldname = 'MATNR'.

i_dynfields-stepl = num.

APPEND i_dynfields.

i_dynfields-fieldname = 'ERFMG'.

i_dynfields-stepl = num.

APPEND i_dynfields.

ENDDO.

• ENDIF.

CALL FUNCTION 'DYNP_VALUES_READ'

EXPORTING

dyname = 'SAPLCOWB'

dynumb = '0500'

translate_to_upper = 'X'

• REQUEST = ' '

• PERFORM_CONVERSION_EXITS = ' '

• PERFORM_INPUT_CONVERSION = ' '

• DETERMINE_LOOP_INDEX = ' '

TABLES

dynpfields = i_dynfields

EXCEPTIONS

invalid_abapworkarea = 1

invalid_dynprofield = 2

invalid_dynproname = 3

invalid_dynpronummer = 4

invalid_request = 5

no_fielddescription = 6

invalid_parameter = 7

undefind_error = 8

double_conversion = 9

stepl_not_found = 10

OTHERS = 11

.

IF sy-subrc <> 0.

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

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

ENDIF.

LOOP AT i_dynfields.

IF i_dynfields-fieldname = 'MATNR'.

IF i_dynfields-fieldvalue IS NOT INITIAL.

READ TABLE i_dynfields WITH KEY fieldname = 'ERFMG'

stepl = num.

IF sy-subrc EQ 0.

IF i_dynfields-fieldvalue = 0 OR

i_dynfields-fieldvalue = space.

MESSAGE e004(zmsg2) WITH 'Quantity cannot be zero or empty'.

ENDIF.

ENDIF.

ENDIF.

ENDIF.

ENDLOOP.

ENDFUNCTION.

but this is not executing the error message.

pls tell me where it is wrong.

[Former Member]

hi all,

now it is triggering error message. but now the problem is it is displaying message even when the quantity is ne 0.

I think there need to do some conversion from char to packed.

because if i give IF i_dynfields-fieldvalue = 0, in the below code, it is giving the error message for all values of fieldvalue.

LOOP AT i_dynfields WHERE fieldname EQ 'COWB_COMP-MATNR'.

IF i_dynfields-fieldvalue IS NOT INITIAL.

READ TABLE i_dynfields WITH KEY fieldname = 'COWB_COMP-ERFMG'

stepl = i_dynfields-stepl.

IF i_dynfields-fieldvalue = 0. "OR

MESSAGE e004(zmsg2) WITH 'Quantity cannot be zero or empty'.

ENDIF.

ENDIF.

ENDLOOP.

Any suggestions?

[former_member202474]

Hi ,

As per ur code given as below:

LOOP AT i_dynfields WHERE fieldname EQ 'COWB_COMP-MATNR'.

IF i_dynfields-fieldvalue IS NOT INITIAL.

READ TABLE i_dynfields WITH KEY fieldname = 'COWB_COMP-ERFMG'

stepl = i_dynfields-stepl.

IF i_dynfields-fieldvalue = 0. "OR

MESSAGE e004(zmsg2) WITH 'Quantity cannot be zero or empty'.

ENDIF.

ENDIF.

ENDLOOP.

If u want to display the message when fieldvalue = 0, then i think u should check ur statement after the loop.

The statements which i have highlighted in bold is contradicting to each other.

Similary the fieldnames in loop statement and in read are different.

In ur code the loop will repeat for fieldnames only = ''COWB_COMP-MATN' and not ''COWB_COMP-ERFMG''.

• Reward if helpful ***

Regards,

Ruby.