This idea has been merged into another idea. To comment or vote on this idea, please visit S1-I-183 Custom Invoice Template.
Most SaaS platforms offer a template placeholder on email templates to personalize invoices, quotes and estimates that are sent out. I'm very surprised this isn't supported in Sage50 Cloud Accounting.
Something like this:
Your invoice for [[month-last]] is ready!
Where the information in the [] are automatically filled with the appropriate information really helps polish the customer experience.