you can use the Export Data Addin for that task and also you will need to extend your ERP service to import the xml received from the Dynamicweb Export Data Addin.
You can read more about that here.
So in the Export data addin scheduled task you can select the"User export activity". The job which should be selected in this drop-down needs to be: Dynamicweb/User provider as a source and
Xml provider as a destination job.
In the data integration job you can select which table/data you want to export: addresses, users, etc.