Bapi Function call from Crystal reports 2008. import parameters syntax.

Question

Dear,
I have an issue with calling a function directly from Crystal reports (2008) in the R3 system.
(if this belongs in another thread , please add the link if moved !)
I try to get data through function "BAPI_CLASS_GET_CLASSIFICATIONS".
Till now all possible input parameters have no data-result.
I already read other threads stating that 'for example' the Language key needs to be provided in a single character. 'E' in stead of 'EN'.
I also already created a Z-wrap-function that fills out all input parameters 'hardcoded'. This works.
clearly there are som syntax changes in passing the values to R3 when called from Crystal Reports.
Can someone state which syntax has to be followed for numeric fields, for datefields etc. (so when i make these dynamical, I know which syntax should be the outcome of the formula)
in my function that doesn't work I use these selections:
(this function is called in a standard report only calling this function)
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_LANGU_ISO} = "E" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_LANGU_INT} = "E" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.T_CLASS_OBJECTS.OBJECT_TYPE} = "MARA" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.T_CLASS_OBJECTS.OBJECT_KEY} = "000000000000000085" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_CLASSNUM} = "DSWTEST" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_CLASSTYPE} = "001" and
{BAPI_CLASS_GET_CLASSIFICATIONS_1.I_KEY_DATE} = Date (2011, 08, 05)
I already tried other languages or the 'EN' as input.
(I would like to know how the date is passed exaclty to R3.)
The function is of course RFC enabled.
when I call the my Z-function with predefined inputparameters in R3 it does give the wanted result.
FUNCTION ZBAPI_CLASS_GET_CLASSIFICATION.
""Local Interface:
*"  TABLES
*"      OBJECT_CLASSIFICATION STRUCTURE  BAPI_OBJECT_VALUES
*"      CLASS_OBJECTS STRUCTURE  BAPI_CLASS_OBJECTS
data ZOBJECT_CLASSIFICATION type TABLE OF BAPI_OBJECT_VALUES.
data ZCLASS_OBJECTS  type TABLE OF BAPI_CLASS_OBJECTS WITH HEADER LINE.
ZCLASS_OBJECTS-OBJECT_KEY = '000000000000000085'.
ZCLASS_OBJECTS-OBJECT_TYPE = 'MARA'.
Append ZCLASS_OBJECTS.
CALL FUNCTION 'BAPI_CLASS_GET_CLASSIFICATIONS'
  EXPORTING
    CLASSTYPE                    = '001'
    CLASSNUM                     = 'DSWTEST'
*   KEY_DATE                     = SY-DATUM
*   LANGU_ISO                    =
*   LANGU_INT                    =
*   CHARACTS_OF_CLASS_ONLY       =
* IMPORTING
*   RETURN                       =
  TABLES
    OBJECT_CLASSIFICATION        = ZOBJECT_CLASSIFICATION
    CLASS_OBJECTS                = ZCLASS_OBJECTS
OBJECT_CLASSIFICATION[] = ZOBJECT_CLASSIFICATION[].
ENDFUNCTION.
please advise.
once again if this should be moved to another forum , add the link please!

Answer 1

Dear,
I just debugged my Z-function, after adding all input parameters as in the standard BAPI function.
All parameters seems to be passed correctly except from the table parameters from
CLASS_OBJECTS
So all I_parameters are passed :
{ZBAPI_CLASS_GET_CLASSIFICATION.I_LANGU_INT} = "EN" and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_LANGU_ISO} = "EN" and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_KEY_DATE} = Date (2011, 08, 05) and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_CLASSNUM} = "DSWTEST" and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_CLASSTYPE} = "001" and
{ZBAPI_CLASS_GET_CLASSIFICATION.I_CHARACTS_OF_CLASS_ONLY.BAPIFLAG} = ""
but the table parameters aren't coming through:
{ZBAPI_CLASS_GET_CLASSIFICATION.T_CLASS_OBJECTS.OBJECT_TYPE} = "MARA" and
{ZBAPI_CLASS_GET_CLASSIFICATION.T_CLASS_OBJECTS.OBJECT_KEY} = "000000000000000085" and
these are 'blanco' in the function.
also after the function is executed and all data is retrieved, when passing the data back to Crystal reports, once again, the table result isn't passed to Crystal Reports.
please advise