Question:

Answer:

An email preheader is the summary text that appears after a subject line when an email is viewed in an inbox.

It is not possible to create a preheader in BEE Editor, as the subject of the document is determined by the document's metadata field.

Similarly, this functionality is not available in Vault.  

As a workaround, users can insert another line in the Subject field in order to make the subject more similar to a preheader.

Related Documentation:

Vault Help Documentation: N/A