Notification when Invoice email is opened and/or links clicked by customer?

I've posted this in the Zoho Books community over a week ago but have had no response so hopefully someone here might be able to help.

Since the only way to know when an invoice email has been opened in Zoho Books is by going into the application and hovering over the mail icon in the Invoices section on Zoho Books, my other users never know when it has been viewed.

I've played with the workflow rules but I can't find any based on signals or email opened so I'm assuming I will need to create a custom function for this? Email notification would probably be easier I'd think but a Cliq notification would also work.

I have never written a Books custom function so any guidance would be appreciated or a template. I do have Zoho Finance integration with CRM so would doing it through the Books app be the right way to go or should it be in CRM?

Here is the link to the original question: https://help.zoho.com/portal/en/community/topic/notification-when-invoice-email-is-opened-and-or-links-clicked-by-customer

New to Zoho LandingPage?

Access Zoho LandingPage

Zoho LandingPage Resources

New to Zoho Survey?

Access Zoho Survey

Latest Feature Updates

Explore our Pricing & Plans

Zoho Survey Resources

Android Mobile Surveys

Insurvey Blogs

Insight Blogs

Tips & Tricks

New to Zoho CRM Plus?

Deliver unforgettable customer experiences

ACCESS ZOHO CRM PLUS

New to Zoho CRM Plus?

Deliver unforgettable customer experiences

ACCESS ZOHO CRM PLUS

New to Zoho Marketing Plus?

Everything you need to run your marketing

ACCESS ZOHO MARKETING PLUS

New to Zoho Marketing Plus?

Everything you need to run your marketing

ACCESS ZOHO MARKETING PLUS

New to Bigin?

Signup Now

Access Bigin

Latest Feature Updates

Zoho Desk Resources

Desk Community Learning Series
Digest
Functions
Meetups
Kbase
Resources
Glossary
Desk Marketplace
MVP Corner
Word of the Day

Tout forum

France ZUGs

Zoho SalesIQ Resources

Topic Participants
Michael
Ashwinth Shekar

Sticky Posts
How to Add Users to your Organization in ZohoMail?
A better clarity so you can create other users to start using Zoho Mail. You can directly Add Users from the Control Panel to your Organization. You can invite users with the existing email address. If the person (user) already uses ZohoCRM, then you can import users from Zoho CRM. You can also import them using a .csv file. (if you are planning to add them in Bulk) In this topic, We will be discussing on how to Add and Invite users only. The Import options are self explanatory. ____________________________________________________________________________________________________________

New to Zoho Social?

Manage your brands on social media

Access Zoho Social