Screen Field Validation in Module pool

[Former Member]

HI Guys,

I need to validate fields in module pool programming.

i have declared the fields like below:

  CHAIN.

     FIELD ZTYPE_INVOICES-CUSTOMINVOICE.

     FIELD ZTYPE_INVOICES-CUSTOMINVOICE1.

     FIELD ZTYPE_INVOICES-CUSTOMINVOICE2.

     FIELD ZTYPE_INVOICES-CUSTOMINVOICE3.

     FIELD ZTYPE_INVOICES-CUSTOMINVOICE4.

     MODULE validate_input ON CHAIN-INPUT.

   ENDCHAIN.

then inside the module i coded like this :

MODULE VALIDATE_INPUT INPUT.

SELECT VBELN

   from VBRK

   into TABLE  it_validate

   where vbeln = ZTYPE_INVOICES-CUSTOMINVOICE.

if sy-subrc <> 0.

   Message 'Enter the valid invoice no.' type 'I'.

   endif.

  ENDMODULE.   

but it's not working.

any advise.

Thanks,

Amit

[Former Member]

Hi,

your flow logic is after PAI?

Why do you select into a table IT_VALIDATE and not SELECT SINGLE. Is the 1st field of table IT_VALIDATE of type VBELN?

Regards,

Klaus

[Former Member]

Hi Klaus,

yes, the flow logic is after PAI.

i tried  using select single also but it dosen't work. yes, the 1st field of internal table is of type VBELN.

Thanks,

Amit

[Former Member]

Hi Amit,

please check that field ZTYPE_INVOICES-CUSTOMINVOICE is also of type VBELN. For conversion exit it mustn't be of another type (data element).

Regards,

Klaus

[Former Member]

Hi Klaus,

Thanks alot.Yes, the data element was different. i changes it to match the VBELN an it solved my problem.

I have rewarded points to you.

Thanks,

Amit