Exchange Online
A cloud-based service included in Microsoft 365, delivering scalable messaging and collaboration features with simplified management and automatic updates.
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
A community member has associated this post with a similar question:
Problems creating or editing a template "Your template couldn't be saved. Please try again later"
Only moderators can edit this content.
I can't create a new template or edit an existing one without getting the aforementioned error, unless the template consists of a single line. For example: