Tip #8 : Implement metered billing with Google Sheet

Tip #8 : Implement metered billing with Google Sheet

Hello everyone,

We've been sharing a tip every week to address specific business scenarios which can be implemented for your subscription business. Last week, we shared a tip about integrating online form builders with Zoho Subscriptions. This week, we will be looking at how you can implement metered billing in Zoho Subscriptions with Google Sheet.

Business Scenario:
Metered Billing  is the concept of charging your customers based on their usage of a product of service. With Zoho Subscriptions, you can charge your customers for a base plan initially and then charge an additional fee based on their usage using metered billing.

Generally, when a business wants to automate the metered billing process, they should have a back-end server that handles the metered billing readings. Once the reading is recorded, the back-end server has to process the difference between the last recorded reading and the current closing reading. If the customer has exceeded the base limit, the back-end server makes an API request to Zoho Subscriptions to update the invoice and charge an additional fee.

Let's consider the following scenario to understand this better. Zylker Electro provides electricity services to residential areas. They have a meter installed in all the houses of the residential area to record the power consumption. Every month, a Zylker personnel visits the houses in the residential area to note down the meter reading. Then, the difference between last month's meter reading and the current month is calculated. If the customer has consumed more than 500 units of power, they will charge the customer an additional 12 cents per unit.

To automate the above process, Zylker has to build a back-end server that will:
  • store the meter readings;
  • calculate the power consumed for every month; and
  • charge the customers accordingly.
Instead of building a back-end server, you can automate the process using the Custom Functions in Zoho Subscriptions and Google Sheets. With the help of Google Sheets, you can note down all the metered readings every month. Later, you can use Google App Scripts to fetch the readings and update the pending invoice using the Custom Functions.

How can you do it?

You can use Google Sheets to note down the readings every month (similar to the image shown below).




Field
Description
Last Recorded Reading
The meter reading at the end of the previous month.
Closing Reading
The meter reading at the end of the current month.
Status
The field is used to specify whether the invoice for a customer has been updated in Zoho Subscriptions or not.
ID
Unique Ids that are used to map the customers between Google Sheets and Zoho Subscriptions.

Google allows us to access and edit the data in spreadsheet with the help of Google Scripts. Coming back to the scenario, every month a Zylker personnel will record the readings in the Google Sheet. With Zoho Subscriptions, you can configure a custom function to run for the invoices in the Pending status. You must configure the Custom Function in such a way that:
  1. it fetches the meter readings from Google Sheets using Google script;
  2. processes the data and adds an additional charge to the invoice, if needed (based on the consumption);
  3. updates the Status in Google Sheets as Updated; and
  4. updates the Last Recorded Reading with current month's closing reading.
Once the custom function executes successfully, the invoice will be updated with the additional charge. The value in the Status field of the Google sheet will also be updated.

Getting started with Google Apps Scripts:

 Google Apps Scripts provides you with feature-rich APIs that allow you to build you own web applications. For our scenario, we will be using the Spreadsheet APIs to fetch and edit the spreadsheet document. We will create two scripts:
  1. The first script will be used to fetch the last recorded reading and the closing reading of a customer.
  2. The second script for changing the Status field of the customer once the invoice is updated.
To create a script in Google App Scripts:
  1. Go to and click the New Script option on the top-left corner.
  2. Copy the scripts provided above and modify it to suit your needs.
  3. Once you are done, click the Publish option on the top and select the Deploy as web app option.
  4. Provide the project name.
  5. Choose Anyone, even anonymous in the Who has access to the app dropdown.
  6. Click the Deploy button.
  7. Save the Web app URL which will be displayed on the screen for future reference.
Once the Google app scripts are successfully deployed:
  1. Create a new Custom Function in Zoho Subscriptions.
  2. Choose the Module as Invoice and Predefined event as Invoice created.
  3. Copy the Custom function from this GitHub link and modify it as per your requirements.
  4. Save the Custom Function and you are good to go.
Found this useful? Try it out for your subscription business and let us know. If you have any queries, feel free to comment below. We are here to answer them.

Cheers,
Sasidaran K,
The Zoho Subscriptions Team.

    • Sticky Posts

    • Tip #4 : Refer and Earn Workflow system for your Subscription Business

      Hello everyone, We've been coming up with a tip every week to address specific business scenarios which can be implemented for your business. In continuation to the previous post, this week we will be seeing about how you can implement the Refer and Earn Workflow system to acquire more customers. Why are Referrals important? Customer Acquisition is crucial for any business to sustain itself in a constantly evolving market. It involves persuading new consumers to purchase your products. Customers

    • Tip #2 - Cancellation of Offline Subscriptions based on the Expected Payment Date

      Hello everyone, As you all know, we are coming up with a custom function workflow every week to address specific business scenarios. In continuation of this previous blog, this week we will be seeing about Cancellation of Offline Subscriptions based on the Expected Payment Date. Business Scenario: In general, for any business, the customers make payments via online as well as offline. In case of subscription where the automatic collection of charge is enabled (aka online subscription), the customer's

    • Tip #3 : Send SMS Reminders for your Subscription Business

      Hello everyone, As you all know, we are coming up with a tip every week to address specific business scenarios. In continuation to the previous blog, this week we will be seeing how you can use SMS reminders for your Subscription Business. Using SMS messages for your Subscription Business: While managing your subscription business, more often than not, you need to keep your customers informed about upcoming renewals, payment reminders and cancellations. By keeping them informed in advance, you can

    • Tips And Tricks - Announcement

      Hello everyone, Every business is unique and each of them follows a specific workflow. While managing your customers' subscriptions with Zoho, you might have some needs unique to your business. Custom Functions helps you address such needs. This is a start to a series of posts, where we will be coming up with a custom function workflow every week that addresses specific business scenarios. Watch this space for further updates! Also, if you have any specific business scenario which needs to be addressed,

    • Tip #6 : Accessing external URLs from Zoho Subscriptions

      Hello everyone, We have been sharing a tip every week to address specific business scenarios which you can implement for your subscription business. Last week, we shared a tip about implementing the Approval Workflow system. This week, let's look at how you can access external URLs with the help of Custom Link. Business Scenario: Every business functions differently and has its unique requirements. At times, businesses might want to access other websites or applications by appending specific information

      • Recent Topics

      • Unable to change Company Logo

        Hi Guys, I have an issue where I've uploaded a Company image in Gif format and the logo has now got a black background whereas the logo is supposed to be black not the background. I didn't think it would be an issue so I created a PNG version to upload

      • Metadata API Access to Functions

        I think it would be incredibly helpful to have api access to every function's code. Our team primarily uses deluge functions to update fields across modules according to business logic. I would like to create a visual dependancy model for our CRM, but

      • Historical Sales Info - Blend with Finance Invoice Line Items, Access in CRM and Desk

        My company has been using Zoho One since 2021, with sales data going back through 2020. However, we have been in business much longer, and we have historical sales information that we want to have at our fingertips when talking with customers (usually

      • Introducing Record Category in CRM: Group options to see record status at a glance.

        Release update: Currently available for CN, JP, and AU, CA, Sa, and UAE DCs (all editions); EU, US, and IN (Standard and Professional editions). It will be made available to other DCs by mid-March. Hello everyone, We are pleased to introduce Record Category

      • Service disruption in Zoho Cliq (EU Region) – February 9, 2026

        Hello everyone, We’d like to inform you about a brief service disruption that affected Zoho Cliq users in the EU region earlier today. The issue has been resolved, and all services are now operating normally. Summary On February 9, 2026, Zoho Cliq experienced

      • Spotlight series #26 - Build slides with visual clarity using Diagram

        Hello all! The feature in the spotlight this month is Diagram. Let's say you are a part of a project kickoff meeting and your teammate starts explaining the project life cycle like this: "First we ideate, then we create an initial prototype and share

      • Client scripts for Zoho Books ?

        Good day everyone, I am looking for a way to be able to interact with the Quotes and Invoices as they are being created. Think of it like Zoho client script in Zoho CRM. But for the life of me I dont see a way to do this. The issue with having function

      • Uplifted homepage experience

        Editions: All editions. Release Note: Available in CA and SA DCs (Standard, Professional). Availability update (17th February 2026): The feature has been enabled for the following DCs: All editions in the CA and SA DC | Free, Standard and Professional

      • Ability to move emails between different Shared Mailboxes

        Hi Zoho Team and Community, I would like to suggest a feature that would greatly improve the workflow for teams managing multiple Shared Mailboxes. Currently, we often receive emails in the wrong shared mailbox. While we can forward them to the correct

      • Crossbeam

        Does anyone use Crossbeam with their Zoho CRM? I'm looking for a way to import Crossbeam partner leads into Zoho CRM. If so: - What's your experience been like? - Are you able to automatically import Crossbeam leads > Zoho CRM? How? - What doesn't work

      • Access forms within a form

        I have multiple forms that I would like to create access to for users within one form. Example: I have forms A, B, C, D. I would like to create a form with the links to forms A, B, C, & D. That way we can send one link and then the user can select the

      • WorkDrive issues with Windows Explorer Not Responding

        We are using WorkDrive to collaborate on editing video content. We have a lot of files and quite a few are a few gigs. Recently anytime I try and work with the files Explorer freezes for a couple minutes whether it's dragging the files into Premiere or

      • Issues with Actions By Zoho Flow

        Hi, I have a workflow that fires when a deal reaches a stage. This then sends out a contract for the client to sign. I have connected this up through Actions by Zoho Flow. Unfortunately this fails to send out. I have tracked it down to the date fields.

      • Fill Mail Merge document up with subform fields of an Inventory module record being in the Related List

        Hi, I try to insert subform fields from an inventory module record being on the Related List of another inventory module record into a Mail Merge template without success. For example: we use ratecards in licensing and this ratecard items are available

      • Enhancements for Currencies in Zoho CRM: Automatic exchange rate updates, options to update record exchange rates, and more

        The multi-currency feature helps you track currencies region-wise. This can apply to Sales, CTC, or any other currency-related data. You can record amounts in a customer’s local currency, while the CRM automatically converts them to your home currency

      • Better use of contacts

        Zoho inventory has the ability to add multiple contacts to customers. However Zoho inventory doesn't currently provide a way to link a contact to objects like sales orders. This means that while you can tell what company has placed a sales order you can't

      • How can we add products using a Wizard?

        We want to create a Wizard to add products. Why is there no possibility to use the products module when creating a wizard?

      • Orphan email alias blocking user creation – backend cleanup required

        Hello Zoho Mail Support, I´m unable to assign or create the address xx@iezzimatica.ar in my organization. Current situation: Alias cannot be assigned to any user (system says it is already in use) New user with this address cannot be created Address does

      • Ensure Consistent Service Delivery with Comprehensive Job Sheets

        We are elated to announce that one of the most requested features is now live: Job Sheets. They are customizable, reusable forms that serve as a checklist for the services that technicians need to carry out and as a tool for data collection. While on

      • Something wrong with client script??

        Someone have the same feeling? Client script behavior become very strange..

      • API 500 Error

        Hello amazing ZOHO Projects Community, I get this message. How can we solve this? { "error": { "status_code": "500", "method": "GET", "instance": "/api/v3/portal/2010147XXXX/projects/2679160000003XXXX/timesheet", "title": "INTERNAL_SERVER_ERROR", "error_type":

      • Polish signer experience to compete with docusign

        I would like to suggest that someone spend the little bit of time to polish the signer experience, and the email templates to more of a modern professional feel. They are currently very early 2000s and with some simple changes could vastly improve the

      • how to change the page signers see after signing a document in zoho sign

        Hello, How can I please change the page a signer sees after signing a document in Zoho Sign? I cannot seem to find it. As it is now, it shows a default landing page "return to Zoho Sign Home". Thanks!

      • Digest Janvier - Un résumé de ce qui s'est passé le mois dernier sur Community

        Bonjour chers utilisateurs, Le premier mois de l’année est déjà derrière nous ! Découvrons ensemble comment s'est passé janvier pour Zoho Community France. Nous avons démarré le mois avec une nouvelle intégration entre Zoho Desk et Zoho Contracts. Cette

      • contact support

        I have 2 request for a phone call and not received one call as promise!

      • Can we fetch Deal owner and Deal owner email with COQL?

        While fetching deal deatils with coql api and while fetching deal owner name and email it is just giving owner id not ginving name and email https://www.zohoapis.in/crm/v2/coql

      • Zoho Social - Cliq Integration / Bot

        Dear community / zoho, I am looking for a way to create a bot within Zoho Cliq to update my colleagues about our Zoho Social activities. For example, if a new post is published, it would be great if this post automatically would be shared in our social

      • Comment to DM Automation

        Comment to DM automation feature in Zoho Marketing Automation, similar to what tools like ManyChat offer. Use case: When a user comments on a social media post (Instagram / Facebook), the system should automatically: Send a private DM to the user Capture

      • Send / Send & Close keyboard shortcuts

        Hello! My team is so close to using Zoho Desk with just the keyboard. Keyboard shortcuts really help us to be more efficient -- saving a second or two over thousands of tickets adds up quickly. It seems like the keyboard shortcuts in Desk are only for

      • Handling Agent Transfer from Marketing Automation Journey to SalesIQ WhatsApp

        We are currently using Marketing Automation for WhatsApp marketing, and the features are great so far We have a scenario where, during a campaign or journey, we give customers an option to chat with our sales team. For this, we are using SalesIQ WhatsApp

      • Transfer Amount from One Vendor to Another Vendor

        One of the vendors, who has a balance with us, has closed the business and has started a new business; Now he wants me to transfer the outstanding from the old account to the new Vendor Account. I am trying to do this using Payment Settlement a/c, But

      • Webinar - Getting Started with Zoho LandingPage

        Want to launch landing pages that support real marketing goals? This webinar is designed to help you understand the role landing pages play in your overall campaigns and how they contribute to lead generation and conversions. During this session, you’ll

      • Increase Round Robin Scheduler Frequency in Zoho Desk

        Dear Zoho Desk Team, We hope this message finds you well. We would like to request an enhancement to the Round Robin Scheduler in Zoho Desk to better address ticket assignment efficiency. Current Behavior At present, the Round Robin Scheduler operates

      • Zoho mail to contacts and leads, but not to accounts?

        We use the accounts tab a lot for our business because they can be linked to the sales orders. Now we want to use the mail add on to link communication of our emails to our accounts. However this is only possible for contacts and leads? It would be convenient

      • Marketing Tip #19: Upsell on product page to increase order value

        Upselling doesn’t have to feel pushy. It can actually feel helpful when done right. Think "people also bought", upgrades, add-ons, or complementary items. A smart upsell increases your average order value and improves the customer experience by making

      • CRM limit reached: only 2 subforms can be created

        we recently stumbled upon a limit of 2 subforms per module. while we found a workaround on this occasion, only 2 subforms can be quite limiting in an enterprise setting. @Anonymous User I've read about imminent increase of other components (e.

      • Kaizen #198: Using Client Script for Custom Validation in Blueprint

        Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.

      • Removing Tables from HTML Inventory Templates - headers, footers and page number tags only?

        I'm a bit confused by the update that is coming to HTML Inventory Templates https://help.zoho.com/portal/en/kb/crm-nextgen/customize-crm-account/customizing-templates/articles/nextgen-update-your-html-inventory-templates-for-pdf-generator-upgrade It says

      • Ability to Link Reported Issues from Zoho Desk to Specific Tasks or Subtasks in Zoho Projects

        Hi Zoho Desk Team, Hope you're doing well. When reporting a bug from Zoho Desk to Zoho Projects, we’ve noticed that it’s currently not possible to select an existing task or subtask to associate the issue with. However, when working directly inside Zoho

      • How do i move multiple tickets to a different department?

        Hello, i have several tickets that have been assigned to the wrong department.  I am talking about hundreds of automatically generated ones that come from a separate system. How can i select them all at once to move them to another department in one go? I can select them in "unsassigned open tickets view" but i can't find a "move to another department" option. I also can't seem to assign multiple tickets to the same agent in that same view. Could somebody advice?

      • Next Page