![](http://www.jangomail.com/blog/uploaded_images/Import_UpdateOnly-758093.gif)
This is yet another way JangoMail provides complete control and flexibility over your data.
API/Web Service users can call either ImportGroupMembersFromData2 or ImportGroupMembersFromFile2 and set the "UpdateOnly" parameter to "True" or "False".
API/Web Service users can call either ImportGroupMembersFromData2 or ImportGroupMembersFromFile2 and set the "UpdateOnly" parameter to "True" or "False".