To change a Smart Attachment that you sent in a message, follow the steps below.

Upload the new, corrected Smart Attachment. To Upload go to Content>Smart Attachments>New.

Content-Smart Attachments

Delete the Smart Attachment you want to replace by selecting it in your Content Library then clicking on the X.

Delete smart attachment

Go back to the new Smart Attachment and click Edit>Change the name to that of the original Smart Attachment that you just deleted.

Edit

The link in the message will now redirect to the new Smart Attachment.