topic Re: Regarding creating RFC in Application Development and Automation Discussions

Regarding creating RFC

Former Member — Fri, 06 Jun 2008 16:27:25 GMT

Hi frnds,

Can u pls send me some doc/link or explain me how to craete RFC from scratch.

I know the basic like rfc definition, Types of rfc, difference between those.

I want to know how to send data from one sap sytem to non-sap sytem the whole process. How the FM is build from the very beginning.

Thanks ankita

Re: Regarding creating RFC

Former Member — Fri, 06 Jun 2008 16:32:35 GMT

bapi is also a rfc so check this link

http://www.saptechnical.com/Tutorials/BAPI/CustomBAPICreation2/page1.htm

types of rfcs

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f078394a-4469-2910-c4bf-853c75674694

Re: Regarding creating RFC

Former Member — Fri, 06 Jun 2008 16:35:23 GMT

In this case it's very important to understand who is calling and who is called.

If u need to send data from SAP system to non-SAP system, u need to know how to call a RFC function defined in non-SAP system, so u need to know how to create it in that system: this depends on the non-SAP system.

If yuo need to define RFC in SAP system, it means to need to create a link from non-sap system to sap.

So what do you really need to know?

Max

Re: Regarding creating RFC

Former Member — Fri, 06 Jun 2008 17:34:38 GMT

Hi KPN,

I have gone through that doc before regarding rfc types and bapi. i know bapi is rfc but all rfc are not bapi.

MAX,

I wanted to know how to how to create a FM group, assign FM, implementing the rfc, implemeting in the remote system and then calling rfc getting the data the whole senario....how it works.

PLS HELP ME

Re: Regarding creating RFC

Former Member — Fri, 06 Jun 2008 18:11:14 GMT

There 's not a really big difference with to create a function group and no rfc function module.

The RFC in SAP is a function module where the flag to REMOTE CALLING is setted in the attribute: so u can use trx SE80 in order to create a function group and SE37 (or SE80) in order to create the fm.

Now if you define the RFC in SAP, it means your NON-SAP system calling this FM in order to dialogue to SAP: so it's very important the interface parameters of RFC function module: because the data can be transfered:

- From non-SAP (system calling) to SAP (system called) by IMPORT and TABLES parameters

- From SAP (system called) to non-SAP (system calling) by EXPORT and TABLES parameters.

How to call a SAP rfc fm from non-SAP system depends on non-SAP systems, which kind parameters have to be use as IMPORT/EXPORT/TABLES parameters depend on which data you need to transfer.

For example:

The non-SAP system need to know the master data of a customer, so it can create a RFC function module with:

- Customer code as IMPORT parameter

- KNA1 as EXPORT parameter

When non-SAP calls that rfc transfere the customer code and SAP will returns the record read from KNA1.

U should consider u can need an help from your basis or your administrator in order to create the link beetwen remote system and SAP.

Max

Re: Regarding creating RFC

Former Member — Fri, 06 Jun 2008 19:08:58 GMT

Little bit clear form ur message.

Can you post any doc in respect to rfc like the example u gave for customer master data

Thanks for help..really appreciate it