Currently when a user is uploading an already existing asset into the DAM he has the options to replace or create version ( in touch UI also keep both ) .
Is it possible to disable the replace asset option for both classic and touch UI ?
You can create your own custom DAM handler and create application logic to meet your business requirements. When an asset is uploaded - you DAM handler is fired and will perform the task that you want it to. For information about DAM hanlders - including the API to develop it - see:
http://helpx.adobe.com/experience-manager/using/damhandler.html.
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