No Authorization to Create Users 
When creating a search object connector of the type SAP BO Search, the connection wizard returns the following error message:
Your current user doesn't have the authority to create the user!
SAP NetWeaver Enterprise Search needs to create a special user for communicating with the back-end system, based on the back-end user you have specified for the connection. However, the back-end user that you have specified does not have the required authorizations.
In the case of an SAP R/3 back-end system, the user must have the following authorizations:
Profile S_BI-WX_RFC
Authorization to run transactions SU01 and PFCG
Authorization for the S_USER_GRP authorization object with:
Authorization field ACTVT * (all)
Authorization field CLASS * (all authorization groups)
Authorization for the S_USER_PRO authorization object with:
Authorization field ACTVT * (all)
Authorization field PROFILE with the value SI_BI-WX_RFC