topic Re: System function in Application Development and Automation Discussions

System function

Former Member — Fri, 02 Oct 2009 10:32:55 GMT

Hi.

In the CONVERSION_EXIT_ALPHA_OUTPUT function module there is code:


CALL 'CONVERSION_EXIT_ALPHA_OUTPUT' ID 'INPUT'  FIELD INPUT
                                      ID 'OUTPUT' FIELD OUTPUT.

Can I anywhere look at code of system function or where can I find documentation to such system functions.

Re: System function

Former Member — Fri, 02 Oct 2009 10:36:42 GMT

these are called C routines, you cant not see its code, not even in debugging.

Re: System function

Former Member — Fri, 02 Oct 2009 10:45:31 GMT

The documentation available in SE37 for this function module says:

"Reversing conversion undertaken by function module CONVERSION_EXIT_ALPHA_INPUT. The contents of the INPUT field are converted to display format and placed in the OUTPUT field."

Any help?

Re: System function

SuhaSaha — Fri, 02 Oct 2009 11:19:26 GMT

Hello Kartik,

Just to add to the info you provided. The CALL 'XXX' are Kernel level functions (which you say to be C functions) which should be used only by SAP only.

Better documentation in SAP-F1

BR,

Suhas

PS: We had a custom FM (some CRC key calculation) where we had used this "CALL" function. And believe me it was a pain when upgrading from 4.5(non UC) to ECC5.0

Re: System function

Former Member — Fri, 02 Oct 2009 11:29:58 GMT

Hi Marat,

this sap help would help you know more abt such calls

http://help.sap.com/saphelp_40b/helpdata/es/34/55cad698482bc0e10000009b38f91f/frameset.htm

@Suhas

Thanks for the info.

I was curious about these functions and had a thought in mind that if i get a chance i will try to implement it in one of my codes, but it seems their use is better left for sap internal use only.

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