generic extractor based on specific function module with delta update

Hi everybody,

I'm trying to create a specific extractor using a specific function module and a specific structure of record.

The Standard FM which i am using as a reference is RSVD_BW_GET_DELTA_DATA. but when i execute the same in rsa3 it give me an error "Errors occurred during the extraction" .

Can some one pls help me or send me a code or something which i can refer and check my FM.

Also please let me know if it possible to check the data source in ras3?

Regards,

Pawan