Function #48: Manage fixed installment payments using Zoho Books

Function #48: Manage fixed installment payments using Zoho Books



Hello everyone, and welcome back to our series!

Businesses offer installment payment options to their customers, particularly for expensive purchases, to ease the financial burden on them. By breaking down the total cost into smaller, more manageable payments, businesses can attract a wider audience who may not be able to afford large upfront payments. This approach not only increases the likelihood of making more sales, but also helps to spread revenue over time, improve cash flow, enhance customer satisfaction and loyalty, and provide a competitive advantage in the market.

We receive numerous requests from our users regarding the handling of these installment scenarios. We heard you loud and clear. Today, we are excited to share a solution that utilizes custom functions to manage installment payments in Zoho Books.

Let's take the example of Mr. John Hector, who wants to buy a 75-inch TV from Zylker Electronics, priced at a hefty $2,300. He is finding it difficult to pay the entire amount upfront. Therefore, Zylker Electronics offers him the option to pay in installments. They mutually decide that John will spread the payment over 5 months, committing to monthly installments of $460 until he settles the entire purchase amount. Let's delve into how this process can be efficiently managed within Zoho Books using custom functions.

Firstly, Zylker Electronics should create a sale invoice of $2,300 in their Zoho Books organization. While creating it, they should input the start date of the installment and the number of installments in two custom fields. For instance, if the sale was made on 01.04.2024 and Mr. John agreed to pay in 5 installments starting on 10.05.2024, the start date should be entered as 10.05.2024, and the number of installments as 5.

Two custom functions will come into play: one to generate the retainer invoices to collect the installment payments and another to apply the retainer payments to the sale invoice.

Based on the number of installments entered the function will determine the amount to be charged as monthly installments.
Installment amount = Total Amount Payable / No of installments = $2300 / 5 = $460.

On the specified start date, the first function will create and send the retainer invoice for the first installment. Once the payment for this installment is recorded, the second function will apply it to the sale invoice, reducing the balance accordingly. The process repeats each month, generating and sending retainer invoices for subsequent installments until all 5 are completed. Each retainer invoice will be for $460 and due on the 10th of every month for 5 consecutive months. As each retainer invoice is paid, the second function will automatically apply it to the sale invoice, thereby recognizing the income.

Prerequisites: 

1. Create a Connection named "zbooks" to successfully execute the scheduler. You can watch the GIF attached below to know how to create the connection.




2. Create a Date-type custom field called "Installment Start Date" for the Invoices. This field will be used to input the starting date for installment payments.



3. Create a Decimal-type custom field called "Number of installments" for the Invoices. Here, you'll specify the agreed-upon number of installments. Using this information and the total invoice amount, the function will determine the monthly installment amount.



4. Create a new Retainer Invoice template with the document title "Installment Payment". Then, copy the template ID (You can get the ID from the URL of the webpage) and substitute it into line 26 of the first function. This ensures that all the retainers sent for collecting installment amounts are correctly labeled.



(1) Custom Function to create Retainer Invoices:

Navigate to Settings -> Automation -> Workflow Actions -> Custom Functions -> +New Custom Function -> Module -> Select Invoice -> Add the function code from this GitHub Link -> Save. 



(2) Workflow Rule to create Retainer Invoices:

Go to Settings -> Automation -> Workflow Rules -> +New Workflow Rule and set up the workflow rule as shown below:-




In the final step of this workflow rule, associate the custom function you created and then hit Save.

(3) Custom Function to apply installment payments to the sale invoice:

Navigate to Settings -> Automation -> Workflow Actions -> Custom Functions -> +New Custom Function- > Module -> Select Retainer Invoice -> Add the function code from this GitHub Link -> Save. 



(4) Workflow Rule to apply installment payments:

Go to Settings -> Automation -> Workflow Rules -> +New Workflow Rule and set up the workflow rule as shown below:-






In the final step of this workflow rule, associate the custom function you created and then hit Save.

We really hope that today's functions help you streamline the process of handling installments in Zoho Books. If you need any assistance in customizing the functions to better suit your needs, please do not hesitate to contact us at support[at]zohobooks[dot]com. We are always happy to help you. 

Also, for those looking to collect varying percentages of the invoice total as installments, stay tuned! 

Regards,
Shireen Farhana
Zoho Books

    • Sticky Posts

    • Introducing Invoice Consolidation for Offline Subscriptions

      Hello Folks, Glad to announce the feature of Invoice Consolidation for Offline Subscriptions. If you are having multiple subscriptions for your customers, now, you can send a single consolidated invoice for all the Offline Subscriptions that are getting renewed on the same date. Advantage?  Customers will be receiving single invoice instead of multiple invoices upon renewal. Also reduces your efforts in follow-up with your customers for payment collections. For Example: If Customer has Subscription

    • New feature: Create back-dated subscriptions

      Hello from the Zoho Subscriptions team. :)   We’re happy to announce that today marks the launch of a much-awaited feature: creating back-dated subscriptions!   From here on out, whenever you create a new subscription with an activation date that is earlier than the present date, you’ll no longer get an error. Instead, you'll be creating a back-dated subscription. This means that the subscription started at that earlier point in time. The next billing date will be calculated automatically based on

    • Announcement Regarding Notification Emails

      Hello Everyone! This announcement is regarding the admin notification emails which you've been receiving from the email address "support@zohosubscriptions.com". From the 1st of October, 06:00 GMT, the emails with the following subjects will be sent from "no-reply@zohosubscriptions.com". Unable to send invoice for the profile - {profile_name} Unable to process auto payments. If you have set up any filters or workflow in your email account, please add "no-reply@zohosubscriptions.com” and  “support@zohosubscriptions.com”

    • Zoho Subscriptions plugin for WordPress

      Zoho Subscriptions plugin for WordPress allows you to easily embed your plan specific checkout page in an iframe with just a few mouse clicks and without a single line of code. How can WordPress Zoho Subscriptions Plugin boost your productivity? It's now easier to embed Zoho Subscriptions checkout page in your WordPress site. Forget the old method of logging in to Zoho Subscriptions, copying a URL and scripting to make adjustments. All this can be done automatically through this plugin. A great time

    • Indian GST organisation Migration Guide

      With respect to the new GST regime releasing on July 1, 2017in India, Zoho Subscriptions Indian edition is also gearing up to make your business GST Ready. This article focuses on how to get your existing organisation in Zoho Subscriptions to migrate to the new GST regime.    Note:  Any organisation created on or after July 1, 2017 will already be GST ready. You wouldn't have to migrate your organisation. Migrating your existing organisation to support GST To migrate your existing organisation to

      • Recent Topics

      • Option to block bookings from specific email address or ip adresss in zoho booking

        Sometime few of our client keep booking irrelevant booking service just to resolve their queries and they keep booking it again and again whenever they have queries. Currently its disturbing our current communication process and hierarchy which we have

      • Feature Request: Email Templates for notifications accross all services

        Currently in Zoho Bookings, email notifications (such as booking confirmations, reminders, and cancellations) must be customized individually for each service. This becomes time-consuming and error-prone when managing multiple services that require consistent

      • Allow customers to choose meeting venue and meeting duration on booking page

        My business primarily involves one-to-one meetings with my clients. Given the hybrid-work world we now find ourselves in, these meetings can take several forms (which I think of as the meeting "venue"): In-person Zoom Phone call I currently handle these

      • Approval-based booking with Zoho Creator and Zoho Bookings

        Hi community members, We have developed a workaround for approval-based booking using Zoho Creator and Zoho Bookings! This provides a temporary solution as we work on the native feature, and it's useful for anyone needing an approval workflow when confirming

      • Member Accounts in Related List

        Hi Team, Currently, when a parent account is associated with an account in FSM, there is no related list displaying the associated member accounts under the parent account’s related list section. To view member accounts, I have to manually search using

      • how do i remove a specific Zoho Service from my account

        I no longer need Zoho CRM, ZRM Assist nor ZRM BugTracker. How do I remove them from the list of apps for my account?

      • I Want migarte all invoice details to zoho sheets

        I want to migrate all existing invoice details to Zoho Sheet, and automatically update the sheet whenever a new invoice is created.

      • were can i find my invoices i need this for my accountant

        were can i find my invoices i need this for my accountant, how can i get id direct to my email?

      • ONLY email field not populating Writer fillable document (randomly)

        I have a Zoho Writer fillable document that has pulled all my data from my Zoho Sheets file, EXCEPT the email column. It pulled every data before and after that column with no issues. Screenshots attached. It's not my first time using the app or the feature,

      • My number is marked as spam

        Hello Zoho Mail Support, My phone number was incorrectly flagged as “spam” during sign-up. This is my personal number, and I have not engaged in any spam activities. Kindly review and verify my account so I can proceed with my email setup. Thanks.

      • Personnalisation des paramètres dans Zoho Mail

        Pourquoi cela compte-t-il ? La personnalisation des paramètres dans Zoho Mail permet aux administrateurs de configurer l’environnement de messagerie en fonction des besoins spécifiques de leur organisation. Que ce soit pour alléger l’interface pour certaines

      • How To Save Data Into Zoho CRM Sandbox

        Hi Community, I want to save data into my zoho sandbox , for this I am using this api endpoint - https://www.zohoapis.com/crm/v8/Patients but I am getting this error - { "success": false, "message": "Zoho API request failed", "error": { "code": "INVALID_MODULE",

      • Automate pushing Zoho CRM backups into Zoho WorkDrive

        Through our Zoho One subscription we have both Zoho CRM and Zoho WorkDrive. We have regular backups setup in Zoho CRM. Once the backup is created, we are notified. Since we want to keep these backups for more than 7 days, we manually download them. They

      • Question about retrieving unsubscribed contacts (outside of lists) via API

        Hello, I am currently using Zoho Marketing Automation and would like to integrate it with our company’s core system. For this purpose, I am exploring the API options available to retrieve contact information. Specifically, I would like to know if there

      • Getting “mandatory field missing: Service_Line_Items” When Creating Work Order via Zoho Flow Deluge

        Hi Team, I’m trying to create a Work Order in Zoho FSM with only a Service Line Item (no Parts). However, I keep getting this error: Work Order Response: {"code":"MANDATORY_NOT_FOUND","details":{"api_name":"Service_Line_Items"},"message":"required field

      • How to customize the colors of the Client Portal login screen and add the company logo?

        As title, how to customize the colors of the Client Portal login screen and add the company logo?

      • Daily updates/fixes and how to see what was changed?

        When I receive the notification that zoho was updated and I need to refresh it. How can I see what was changed or fixed? Sometimes they change things that effect my books and I need to know what they did. For example over this past weekend something was

      • Upcoming Change: Snowflake Username/Password Authentication Deprecation – Action Required

        Hello Users, Snowflake has officially announced that username and password-based authentication will be deprecated by November 2025. You can find the official announcement [here]. If you're using a Snowflake connection in Zoho Analytics to import data,

      • Why should I choose Zoho Inventory vs Odoo?

        Hello there! I have used Zoho in different companies I've worked in, and I have a positive perception of it. I am starting a new import business for pipes, tubes, fittings, valves, elbows, etc., which all have serial numbers, cast numbers, etc., so I

      • Product Updates in Zoho Workplace applications | July 2025

        Hello Workplace Community, Let’s take a look at the new features and enhancements that went live across all Workplace applications this July. Zoho Mail Import bookmarks from Pocket Worried about losing your Pocket bookmarks? Don't worry we have got you.

      • PLEASE FIX YOR BUGS

        PICTURES ARE BEING REJECTED DESPITE THEM FOLLOWING THE GUIDELINES ON DIMENTIONS.

      • Kaizen# 204 - Answering Your Questions | Perform Field Updates before Blueprint transition via Client Script

        Hello everyone! Welcome back to another exciting Kaizen post. One of the questions we received through your Kaizen feedback was: “How can I update fields before Blueprint transition and how to prevent a transition based on a condition using Client Script?”

      • Create online meetings for Booking Pages with Zoho Meetings and Zoom

        Greetings, We hope you're all doing well. We're excited to share some recent enhancements to Bigin's Booking Pages. As you know, Booking Pages let you create public pages to share your availability so that your customers can easily book time slots with

      • Filters in audit logs

        Greetings, I hope all of you are doing well. We're happy to announce a few recent enhancements we've made to Bigin. We'll go over each one in detail. Previously, there were no filters available to narrow down data in audit logs. Now, we've introduced

      • Enhanced help options in Bigin

        Greetings, We're excited to introduce a new enhancement to Bigin's Help section: a comprehensive Help Options panel that brings together all your support resources in a single, well-organized space. Previously, the Need Help? menu provided only a limited

      • Zoho FSM API Developer Needed

        Hi, I’m looking for a developer with experience using Zoho FSM APIs. Scope: Connect WordPress website booking form to Zoho FSM Check availability (date, time, region) Create Work Orders + Service Appointments automatically Notify both customer and scheduler

      • Revenue Management: #4 What if there are uncertainties in project or service delivery?

        Our previous post taught us how Zoho Billing makes life easy for businesses with its automated revenue recognition rule. However, certain businesses have more challenges that an automated system cannot handle, and there are certain situations where automated

      • This mobile number has been marked spam. Please contact support-as@zohocorp.com

        Bom dia, estou tentando colocar o número 11 94287-6695 e esta com erro "This mobile number has been marked spam. Please contact support-as@zohocorp.com" pode me ajudar, por favor?

      • Items Serial Tracking Issue

        We enabled Zoho Items inventory tracking then disabled it after some time now we want to enable it again When I check the missing serial number reports I see one item But I cant see any option to Add the serial numbers Where and how to add the serial

      • Zoho Payroll integration with Zoho Books - unable to match multiple bank feeds to one wage payment

        For one employee's wage, I make two partial payments. Those bank feed transactions come into Zoho Books via bank integration. I make one pay-run for the month in Zoho Payroll and that comes into Zoho Books via the Zoho integration. Zoho Books doesn't let me match multiple bank feed transactions against a single wage item. Please fix urgently. I can't complete my books because of this.

      • Add Checkbox Selection & Bulk Actions to Delivery Challans Module

        Hi Zoho Team, I’ve noticed that in the Sales Orders module, there are checkboxes beside each entry that allow users to select multiple records for bulk actions such as print, email, or delete. However, in the Delivery Challans module, this option appears

      • Can't be able to check-in in laptop

        even after giving location access still i can't be able to check-in in laptop.

      • Compensation Cess on Coal ₹400 per tonne. ?????

        The compensation cess rate varies by the type of product. And the cess is calculated based on the value of the product without GST. Coal, for example, comes with a cess of ₹400 per tonne. That means that if you sell 2 tonnes of coal that have a value

      • 7 month over zoho book purchase but still not immpliments Golive

        7 month over zoho book purchase but still not immpliments Golive one problems zoho team short out then other problems come still very poor mangments and immliments team . struggling with the templates in ZOHO Books. Especially with the placement of some

      • Average Costing / Weighted Average Costing

        Hello fellow maadirs. I understand Zoho Books uses FIFO method of dealing with inventory costing, but do you guys have any plans to introduce average costing? We indians need average costing. It's part of our culture. Please. I beg thee. Thanks.

      • SMS to customers from within Bigin

        Hi All, Is there anyone else crying out for Bigin SMS capability to send an SMS to customers directly from the Bigin interface? We have inbuilt telephony already with call recordings which works well. What's lacking is the ability to send and receive

      • Parent & Member Accounts (batch updating / inheritance)

        Hello, I find the Parent Account functionality very useful for creating custom views and reports, but was wondering if I can also carry out batch editing on all members (aka children) of a Parent Account at the same time. Alternatively, can I set members to automatically inherit the values of the parent? For example: We have a chain of supermarkets that buy our products. These supermarkets are all members of a Parent Account in our CRM. We release a new product and all of the member stores wish to

      • Edit Legend of Chart

        I would like to edit the legend of the chart. Every time I enable the legend, I get a very unhelpful (1), and when I try to type to change to what I would desire, nothing happens, which is very frustrating. I've gone through your online tutorials and nowhere can I find a legend settings button. This seems a simple fix, where can edit the legend? Thanks.

      • Extended timeouts for APIs beyond 40secs for to accomodate LLMs

        A 40 second max response time for API calls is fine when connecting to most services, however is unsuitable when dealing with LLMs (ChatGPT/Claude/Gemini) where the response timing is very uncertain. Is there any way to increase this? It would be great

      • Deletion of Zoho Account

        To whom it may concern, Good day, My account has been created incorrectly in Zoho and I am not able to join my Company's Zoho account - attached screenshot for your kind reference Alphatronmarine - Portal Kindly advise procedure to delete this current

      • Next Page