Exceptions in FM

[Former Member]

in function module how to use exceptions tab, i have to do the authority check on some field by using the execeptions,

and that field i am not using any where in my function module.

please let me know its urgent

thanks&regards

chaithu.p

Edited by: Alvaro Tejada Galindo on Apr 11, 2008 4:57 PM

[Former Member]

Declare exceptions in the exceptions tab ...

say : NO_AUTHORITY ..

and in the FM :

check the field for authority ...

if authority fails ..

raise the exception...

RAISE NO_AUTHORITY.

[Former Member]

Hi,

U can Catch the Exception Value using sy-subrc

Exceptions throws value like 1,2,3 etc

use sy-subrc statement to catch those values and use for authority Check

if sy-subrc ne 0.

RAISE <VARIABLE>.

endif.

<REMOVED BY MODERATOR>

Edited by: Alvaro Tejada Galindo on Apr 11, 2008 4:58 PM

[Former Member]

Hi,

Your question is not very clear. Are you writing a function module or calling one?

If you are calling one map each exception to a number, if the exception is raised by the function module the return code SY-SUBRC will be set to this number and you can code to handle this.

If you are writing a function module when an error is reached issue an error message and include the RAISING option with the name of your exception.

Regards,

Nick

[Former Member]

Hi,

In FM exceptions you can define your exceptions with numbers.

when the exception araised the Sy-subrc will consist the Number that you are already defined in the Function module.

Check the following Example :

CALL FUNCTION 'READ_SPFLI_INTO_TABLE'

EXPORTING

ID = CARRIER

IMPORTING

ITAB = JTAB

EXCEPTIONS

NOT_FOUND = 1

OTHERS = 2.

CASE SY-SUBRC.

WHEN 1.

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

WHEN 2.

MESSAGE E702(AT).

ENDCASE.

<REMOVED BY MODERATOR>

Edited by: Alvaro Tejada Galindo on Apr 11, 2008 4:59 PM

[Former Member]

In the Exception tab of FM interface, define your exception "PERMISSION_FAILURE" (any name and it's short text)

Let's say you are checking the authorization for transaction then in the source code you have to write something like this:

CALL 'AUTH_CHECK_TCODE'
       ID 'TCODE' FIELD objectname.
  if sy-subrc ne 0.
     message e059 with objectname raising *permission_failure.*
  endif.

Whil calling the FM from your program then it would be something like:

call function ' '

importing

exporting

exceptions

permission_failure = 1 (It will automatically come when you call function by clicking PATTERNs button)

other = 2.