How to add object S_ARCD_RES to user id?

[ashish_pancholi]

I am new to SAP. I am trying to archive the PO document and load using SARI. The PO document has been archived and stored on the content server successfully, but when I am trying to load the PO document using SARI, it is complaining:  "Handle 0 is not known." Message no. BA021.I tried to check in the SAP notes and found the cause and resolution for the issue: 

Cause
The user is missing the required authorization.

Resolution
Ensure that the user has the authorization for object S_ARCD_RES (with activity 02).

I need help to know how to add the object S_ARCD_RES to the user ID. 

Thanks