Resolve RESTLet API Error detail": "Invalid search query. Detailed unprocessed description follows. Your current role does not have permission to perform this action."

Make sure that the role has permissions for SuiteAnalytics Workbook, Find Transaction, and corresponding Transactions. 

For example, Custom Role A user will query list of Sales Orders. The following must be added on the user's role: 

1. SuiteAnalytics Workbook
2. Find Transaction
3. Sales Order