In integration services, if a Microsoft OneDrive & SharePoint connection is deleted, the OneDrive/SharePoint activities alter themselves to a default integration connection!
This is very dangerous since we do not want to end up performing unintended actions in an other OneDrive account other than the one specified!
Re-explanation:
In the pic, if #2 connection is deleted in integration connections, the activity changes (by itself) it’s connection to the Default one. This means, the file will be uploaded to some other account!
