What are the differences between BAPI and normal BDC IN SAP ABAP

What are the differences between BAPI and normal BDC IN SAP ABAP.

Differences between BAPI and normal BDC IN SAP ABAP.

BAPI BDC BAPI is faster than BDC. BDC is relatively slower than BAPI.

BAPI’s are used to upload the data from the flat file to SAP system directly.

BDC’s are used to upload the data from file to SAP system via screens hence it is slower. No such processing options are available in BAPI. Background and Foreground processing options are available for BDC.

BAPI would generally used for small data uploads.

BDCs would be preferred for large volumes of data upload since background processing option is available. 

BAPI never cause to terminate the program. Whenever an error occurred in the BAPI, it returns those errors through Return parameter. This parameter returns exception messages or success messages to the calling program. Errors can be processed in SM35 for session method and in the batch input program for Call Transaction method.

In BAPI recording is not required

In BDC, recording is required