bapi

BAPI (Business Application Programming Interface) is a set of interfaces to object-oriented programming methods that enable a programmer to integrate third-party software into the proprietary R/3 product from SAP. For specific business tasks such as uploading transactional data, BAPIs are implemented and stored in the R/3 system as remote function call (RFC) modules.

A nice way to work with your data without learning the SAP data model. BAPIs are functions that are "published" by SAP for customer use. They are very well documented and bring less surprises than internal functions. Go to transaction BAPI to get the tree of the functions by functional areas. In addition to simply using them for data extracts or updates you can look into their source code to understand how the data is organized (but this is not an easy task). BAPIs are the first thing to check if you need to update the data (the next thing would probably be BDC - described in Knowledge Corner as well). Using BAPIs for updates can speed up your program significantly (like 100 times!). You can use them to select the data, but of course if you know how to access the database directly, simple select will work faster. Sometimes BAPIs are the only way to get the data, as it is the case with accessing some objects in APO (that are stored only in "Livecache" memory).

A BAPI is remotely enabled function module ie it can be invoked from remote programs like standalone JAVA programs, web interface etc..

You can make your function module remotely enabled in attributes of Function module but

A BAPI are standard SAP function modules provided by SAP for remote access. Also they are part of Businees Objest Repository(BOR).

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.

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

These links gives you step by step eg for learning bapi.

http://www.erpgenie.com/sap/abap/bapi/example.htm

http://www.sap-img.com/bapi.htm

http://help.sap.com/saphelp_nw04/helpdata/en/e0/9eb2370f9cbe68e10000009b38f8cf/frameset.htm

http://help.sap.com/saphelp_nw04/helpdata/en/43/b46c1e53c111d395fa00a0c94260a5/content.htm

http://www.sappoint.com/abap/bapiintro.pdf#search=%22BAPI(SAP)%22

http://www.erpgenie.com/sap/abap/bapi/index.htm

http://www.erpgenie.com/sap/abap/bapi/conventions.htm

http://www.erpgenie.com/sapgenie/docs/BAPI%20Programming.doc

http://64.233.167.104/custom?q=cache:eyMZ5qPOH-0J:www.erpgenie.com/sapgenie/docs/BAPI%2520Intro.doc+...

http://64.233.167.104/custom?q=cache:c7cwsXMxq-UJ:www.sapdevelopment.co.uk/java/jco/bapi_jco.pdf+bap...

List of all bapis

http://www.planetsap.com/LIST_ALL_BAPIs.htm

FOR BAPI's

http://www.sappoint.com/abap/bapiintro.pdf

http://www.sappoint.com/abap/bapiprg.pdf

http://www.sappoint.com/abap/bapiactx.pdf

http://www.sappoint.com/abap/bapilst.pdf

http://www.sappoint.com/abap/bapiexer.pdf

http://service.sap.com/ale

http://service.sap.com/bapi

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCMIDAPII/CABFAAPIINTRO.pdf

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/CABFABAPIREF/CABFABAPIPG.pdf

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCFESDE8/BCFESDE8.pdf

http://www.planetsap.com/Bapi_main_page.htm

http://www.topxml.com/sap/sap_idoc_xml.asp

http://www.sapdevelopment.co.uk/

http://www.sapdevelopment.co.uk/java/jco/bapi_jco.pdf

BAPI Step-by-Step by code :

https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/bapi%2bstep-by-step

Check the below BAPI PDF :

https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/2a1dd5d3-0801-0010-ed8d-bd7...

How to Implement BAPI

Reward Points if Useful

Regards

Gokul

Former Member · ‎2007 Sep 06

hi,

BAPI Step by step Guidance

BAPI stands for Business Application Programming Interface.

There are 5 different steps in BAPI.

- Create BAPI Structure

- Create BAPI Function Module or API Method.

- Create BAPI object

- Release BAPI Function Module.

- Release BAPI object.

Step1. Creating BAPI Structure:

- Go to <SE11>.

- Select Data Type & Enter a name.

- Click on Create.

- Note: Always BAPI should be in a development class with request number (Not Local Object).

- Select Structure & hit ENTER.

- Enter the fields from your database. Make sure that the first field is the Primary Key Field.

- Then SAVE & ACTIVATE.

Step 2. Creating BAPI module:

- Enter TR.CODE <SE37>.

- Before entering any thing, from the present screen that you are in, select the menu

Goto -> Function Groups -> Create Group.

Enter a name (Note: This name Must start with ZBAPI)

Let this screen be as it is and open another window and there, enter TR.CODE <SE80).

Click on the Third ICON that says Inactive Objects.

Select the group that you just created and click on Activate.

Notice that the group you created will disappear from the list of inactive objects.

- Go back to <SE37> screen and enter a name and hit <ENTER>. Then enter the group name that you just created and activated.

NOTE: When you release a function module the respective group will be attached to that particular application. It cannot be used for any other application. NEVER include an already existing group that is attached to another module.

Now click on the first Tab that says [ATTRIBUTES] and select the radio button that says remote-enabled module since we will be accessing this from any external system.

Then click on the second tab that says [IMPORT].

Enter a PARAMETER NAME, TYPE and the structure you created in the first step. Also select the check box ‘Pa’. All remotely enabled functional modules MUST be Pa enabled, where Pa means ‘Passed by Value’ and if you don’t select ‘Pa’, then that means it will be passed by reference..

Then click on tab that says [EXPORT].

Enter the following as is in the first three fields

RETURN TYPE BAPIRETURN (These 3 field values are always same)

Here also select ‘Pa’ meaning Pass by value.

Note: BAPIRETURN contains structure with message fields.

Then SAVE and ACTIVATE.

Step 3. Creating BAPI object:

- Enter Tr.Code <SWO1> (Note. It is letter ‘O’ and not Zero).

- Enter a name and then click on create. Enter details.

NOTE: Make sure that that Object Type and Program name are SAME.

- Enter Application ‘M’, if you are using standard table Mara. If you are using your own database then select ‘Z’ at the bottom.

- Then hit <ENTER>.

- Now we have to add ‘Methods’. High light METHODS and then select the following from the menu:

Goto Utilities -> API Methods -> Add Methods.

- Enter function Module name and hit <ENTER>.

- Select the second FORWARD ARROW button (>)to go to next step.

- Check if every thing looks ok and again click on FORWARD ARROW button (>).

- Then select ‘YES’ and click on <SAVE>.

- Now on a different screen goto TR.CODE <SE37>. Enter Function Module name and select from the top menu Function Module -> Release -> Release.

- Goback to TR.CODE <SWO1>.

Here select the menu combination shown below in the same order.

- Edit -> Change Release Status -> Object Type Component -> To Implemented.

- Edit -> Change Release Status -> Object Type Component -> To Released.

- Edit -> Change Release Status -> Object Type -> To Implemented.

- Edit -> Change Release Status -> Object Type -> To Released.

- Then click on <SAVE>.

- Then click on Generate Button (4th button from left hand side looks like spinning wheel).

- Then Click on the button that says ‘PROGRAM’ to see the source code.

To check if this is present in work flow goto TR.CODE <BAPI>.

Here it shows business object repository.

- First click on the middle button and then select “ALL” and hit ENTER.

- Goto tab [ALPHABETICAL] and look for the object that you created. This shows that the BAPI object has been created successfully.