Differences Between RFC & BAPIS

[Former Member]

What are the differences between RFC and Bapi's ?

[timo_wendt]

Hi,

try the following link :

http://www.sap-img.com/abap/interview-question-on-bapi-rfc-abap-objects-tables.htm

Regards

Timo

[Former Member]

HI naveen

BAPI are RFC enabled function modules. the difference between RFc and BAPI are business objects. You create business objects and those are then registered in your BOR (Business Object Repository) which can be accessed outside the SAP system by using some other applications (Non-SAP) such as VB or JAVA. in this case u only specify the business object and its method from external system in BAPI there is no direct system call. while RFC are direct system call Some BAPIs provide basic functions and can be used for most SAP business object types. These BAPIs should be implemented the same for all business object types. Standardized BAPIs are easier to use and prevent users having to deal with a number of different BAPIs. Whenever possible, a standardized BAPI must be used in preference to an individual BAPI.

BAPIs are called from the outside-in. That is, an external program

invokes a BAPI that gets data from SAP to display or updates data in

SAP. The BAPI concept does not include an event concept -- you cannot

tell SAP that when certain events happen to a "business object", to fire

a message or a file to an external system.

BAPIs are invokable from Java or C/C++ or Visual Basic (and I think some

people are using Delphi).

<b>RFC's are used to call Functional modules in remote systems.</b>

regards

kishore

Message was edited by: Harikishore Sreenivasulu

[Former Member]

Thanks Timo, Hari, Sudha, Amit and Ashok, points given to every body.

[Former Member]

RFCs are mostly stand-alone function modules, whereas BAPIs are implemented as methods of business objects. These business objects can be browsed through the transaction BAPI.

Sudha

[Former Member]

Hi naveen,

1. Both are FM (which are rfc enabled)

the only main difference is

BAPI have a corresponding business object

in BOR.

regards,

amit m.

[Former Member]

Hi Naveen,

Both are FM with RFC(remote Function Call) Enabled onces but the basic difference is BAPI's have and make use of bussiness object(BO) in Bussiness Object Repository(BOR)for knowing more details ...

check this Link

http://help.sap.com/saphelp_nw2004s/helpdata/en/c7/eff2280d0511d3a6300060087832f8/frameset.htm

Regards,

Santosh

[Former Member]

hi naveen,

A BAPI function is an RFC function whereas an RFC function is not always a BAPI.

The BAPI's have specific attributes. Most of them don't do a commit but expect the BAPI_COMMIT to do it for them...

BAPI's have a specific return structure and will not cause an exception to be thrown but return the error description in the errors table... Exception would only be thrown in case of communications failure...

BAPI serve for a business related functionality as the name also implies "Business Application Programming Interface

for more info..check this link..

http://www.sap-img.com/abap/interview-question-on-bapi-rfc-abap-objects-tables.htm

reward if useful..

Message was edited by: Ashok Kumar Prithiviraj

[Former Member]

hi Naveen,

1.A remote function call is a call to a function module running in a system different from the caller's.

2.While a BAPI is implemented as a FM all held in Function Builder.. and defined as a method in SAP Business Object..

It also supports remote function call..

regards

satesh

[Former Member]

Hai Naveen,

<b>BAPI are RFC enabled function modules. the difference between RFc and BAPI are business objects. You create business objects and those are then registered in your BOR (Business Object Repository) which can be accessed outside the SAP system by using some other applications (Non-SAP) such as VB or JAVA. in this case u only specify the business object and its method from external system in BAPI there is no direct system call. while RFC are direct system call Some BAPIs provide basic functions and can be used for most SAP business object types. These BAPIs should be implemented the same for all business object types. Standardized BAPIs are easier to use and prevent users having to deal with a number of different BAPIs. Whenever possible, a standardized BAPI must be used in preference to an individual BAPI.</b>

The following standardized BAPIs are provided:

Reading instances of SAP business objects

GetList ( ) With the BAPI GetList you can select a range of object key values, for example, company codes and material numbers.

The BAPI GetList() is a class method.

GetDetail() With the BAPI GetDetail() the details of an instance of a business object type are retrieved and returned to the calling program. The instance is identified via its key. The BAPI GetDetail() is an instance method. BAPIs that can create, change or delete instances of a business object type

The following BAPIs of the same object type have to be programmed so that they can be called several times within one transaction. For example, if, after sales order 1 has been created, a second sales order 2 is created in the same transaction, the second BAPI call must not affect the consistency of the sales order 2. After completing the transaction with a COMMIT WORK, both the orders are saved consistently in the database.

Create( ) and CreateFromData! ( )

The BAPIs Create() and CreateFromData() create an instance of an SAP business object type, for example, a purchase order. These BAPIs are class methods.

Change( )

The BAPI Change() changes an existing instance of an SAP business object type, for example, a purchase order. The BAPI Change () is an instance method.

Delete( ) and Undelete( ) The BAPI Delete() deletes an instance of an SAP business object type from the database or sets a deletion flag.

The BAPI Undelete() removes a deletion flag. These BAPIs are instance methods.

Cancel ( ) Unlike the BAPI Delete(), the BAPI Cancel() cancels an instance of a business object type. The instance to be cancelled remains in the database and an additional instance is created and this is the one that is actually canceled. The Cancel() BAPI is an instance method.

Add<subobject> ( ) and Remove<subobject> ( ) The BAPI Add<subobject> adds a subobject to an existing object inst! ance and the BAPI and Remove<subobject> removes a subobject from an object instance. These BAPIs are instance methods.

Regards,

Srikanth.

Ps:reward points if helpful

[Former Member]

Hi Naveen.,

Go through this link.

http://help.sap.com/saphelp_46c/helpdata/de/cf/8ccab761ea11d2804a00c04fada2a1/content.htm

Thanks

Vikranth Khimavath

[Former Member]

HI Naveen

please close the thread by rewarding the helpful answers as per the forum ettiquite.

award points by clicking the star at the left side of each reply

regards

kishore