interface

[Former Member]

hi experts,

what is deference bw interface and transfer or convertion . bdc rogram what tye and bapi what type .what is exact maeaning of interface in abap.

thanks in advance,

radhakrishna.

[Former Member]

Hi

BDC is conversions and BAPI is interface

Conversions - This type of transfer refers to a one-time transfer from a legacy system to the SAP system. In this case, the “legacy” system is the old system that is being replaced by the SAP system.

For example, the old system being replaced has data for 2,000 vendors that must be transferred to the SAP system.

Interfaces - This type of transfer refers to an ongoing transfer from a complimentary system to the SAP system. In this case, the “complimentary” system is a system that will run along side the SAP system.

For example, customer orders may be taken in another system. For the SAP system to reflect accurate information, these orders must be transferred to the SAP system every night.

BDC can be both interfaces or conversions depending upon the functionality above.

Interfaces are needed when we need data from other than SAP envoronment and vise versa.

Suppose aclient may send his business data through Excel sheet which are to be loaded in his SAP Tables.Then we need to use interfaces.

There are two Categogies.

1.From Presentation Layer to your ABAP Program(and then into Database table)

Presentation layer means from your sytem (from C, drives)

2.From application Server to your ABAP Program(and then into Database table)

Application Server means the server for your Sap System.

For the first case you need to use:From Presentation Layer to your ABAP Program and vise versa)

GUI_UPLOAD to upload data,

GUI_DOWNLOAD to download data

For the Second case(From application Server to your ABAP Program and vise versa)

A.OPEN DATA SET FILE NAME ON APPL.SERVER FOR INPUT ENCODING BY DEFAULT. use tranfer command to send data to application server

B. CLOSE DATA SET.

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Regards

Anji

[Former Member]

Conversion, converting legacy system data into SAP data. Meaning that it is mainly a one shot deal, for example bringing your customer master to SAP from the legacy system, converting the fields used in legacy to the fields and values used in SAP.

Interface, a program or group of programs that handle the passing of data from one system to another. These programs work together to export the data from one system and import into a target system, maybe these programs run once a day, maybe twice, may every hour throughout the day. It is a good way to keep the data in two or more systems in sync with each other.

CONVERSION : LEGACY SYSTEM TO FLAT FILE.

INTERFACE : FLAT FILE TO SAP SYSTEM.

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