strange error of CALL FUNCTION within Method

[Former Member]

Hi all,

i'm facing a very strange problem. Some Function Modules can't be called from within a method and a dump appears with the following message CALL_FUNCTION_CONFLICT_LENG (CX_SY_DYN_CALL_ILLEGAL_TYPE).

Here's an example: I've created a normal class with only one static method.

Class: ZCL_TEST

Method: CHECK_EMPLOYEE

Importing Parameter: IV_PERNR TYPE PERNR_D

Coding:

  DATA gt_return TYPE TABLE OF bapireturn1.

  CALL FUNCTION 'BAPI_EMPLOYEET_ENQUEUE'
    EXPORTING
      number        = iv_pernr
      validitybegin = sy-datum
    IMPORTING
      return        = gt_return.

  CALL FUNCTION 'BAPI_EMPLOYEET_DEQUEUE'
    EXPORTING
      number        = iv_pernr
      validitybegin = sy-datum.

If i call this method a dump appears and if the same code of that method is implemented directly in a normal report everything works fine.

Why can't i call this function module from within a method?

Regards

Mark-André

[rainer_hbenthal]

How is iv_pernr is declared in the calling program?

[Former Member]

Hi,

the dump even appears by testing the method from Class Builder with F8!

In my test report iv_pernr isn't declared as follows:

REPORT  z_test.
PARAMETERS p_pernr TYPE pernr_d.

zcl_test=>check_employee( p_pernr ). 

The reason of the dump is parameter RETURN. But i don't understand it why it only doesn't work from within a method.

Dump Message:

In the function module interface, you can specify only   
fields of a specific type and length under "RETURN".     
Although the currently specified field                   
"GT_RETURN" is the correct type, its length is incorrect.

Regards

Mark-André

[rainer_hbenthal]

return parameter is not a table.

This one works:

  DATA gt_return TYPE bapireturn1.