Hi Badri,
It seems like you want a way through which you can purge the data present in all/specific Webi documents which are present in your Enterprise.
Yes, you can perform the mass purging of Webi documents with the help of Webi SDKs.
This depends on the BO product version you are using, as there are two set of SDKs:-
1. Report Engine SDKs
2. RESTful Web Services SDKs.
Report Engine SDKs are supported with XI 3.1, however RESTful Web Services SDKs are introduced with the BI 4.0 SP 05 onwards.
Fom BI 4.0 onwards Report Engine SDKs purge feature is deprecated & included in RESTful Web services SDKs.
Here is the link for the Sample code which purge Webi documents (for XI 3.1).
I guess there is no sample code present for purging Webi documents using RESTful Web Services SDKs, so you have to built your own code to purge your Webi document in mass. For detailed workflow through SDK of purging process in BI 4.1, please refer the linked thread.
Here is the link for download RESTful Web Services Developer guide for your reference & detailed information. -
Hope this helps.
Regards,
Shailendra