I have a SharePoint O365 site which has a custom list named ReportMetadata. There is an event receiver for this list for ItemAdded event which will take the image from the attachment column of the list, rename it as ID.png where ID is the in-built unique integral incremental column and paste it in the folder MyImages under Style Library. Now this functionality is working fine for my TEST and PROD environments but the image is not getting copied in the DEV environment. So I want to check whether the event receiver has been attached to the list in the DEV environment. Can anybody help me with this?
You can check with sharepoint online manager . You can try the free trial version to check the events.
Otherwise you need to use client object model to check.