Your developer can extract data from Serraview using the Reporting Endpoint for a standard or custom Serraview Report and then they can load this to an external system. Remember that authentication to the Serraview API will require the authentication to include the report's secured action.
Step 1. Find the Standard or Custom Report Number
Your developer will need to know the Serraview Report ID number and remember that any Custom Report ID number will start from 1000.