Error while creating own BAPI

Question

Hey,
trying this step-by-step guide with own names
http://www.sapdevelopment.co.uk/java/jco/bapi_jco.pdf
Got two errors:
1. In SWO1 while trying to add api methods he said:
BAPI &1: The name of the function module &2 does not begin with 'BAPI'
BAPI &1: BAPI function module &2 has no return parameter
Searching in forum, I found that my structures have to begin with ZBAPI. But
why the tutorial can do this? In tutorial the structure is named ZVEND. Why they
can do this?
2. The second error is telling me, that I have no return parameter. Thats not true.
In my export tab of my function module, I have included a Parameter BAPIRET2 TYPE BAPIRET2.
Trying to insert a table like this:
RETURN TYPE BAPIRETURN
He is telling me that "TABLES parameters are obsolete"
In every tutorial they are using like, but I am not able to use LIKE, only TYPE is this something they changed in the SAP version > 4.7 ???
Does every BAPI needs a return structure or table?
If anyone have some good documents about how to create an own bapi let me know.
But please no short description or 1000 links like this: how to create our own bapi?
thanks
chris
thx
chris

Answer 1

Hi,
Here are the answers for your queries.  (Version 4.7)
1.  The function module name should start with "ZBAPI" the
     one we are creating our own.
     All the structures we refer for parameters in function moudle
     should also start with "ZBAPI"
     (eg., Import Params: VBELN LIKE ZVBAK-VBELN).
2.  There must be a return parameter in Export List in the
     function module like the one below. Its a BAPI standard
     return variable.
     Export Params:RETURN LIKE ZBAPIRETURN.
     In BAPI Function modules we pass parameters as "pass
     by value". That's why Tables are not used as they are
     passed by reference.
Hope it helps you
Murthy.