Can I add an optional sentence to the action notifications? Are there any restrictions?

for Google Workspace / for Microsoft 365

Can I add an optional sentence to the action notifications? Are there any restrictions?

You can insert rule comments and rule group comments to the action notification.

Restrictions:

・Data size is limited to 198 bytes with UTF-8 (if in Japanese, limited to about 70 characters).

・Line break cannot be included.