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

    • The way that Users can view the ticket

      I have created users. What I would like to achieve is the following: All users under the same company account should be able to view each other’s tickets.

    • Zoho UAE SMS/WHATSAPP

      Hello everyone, so I have a question as regards DC and their impact on automation, integration and app usage. For example I am working with a UAE clientniw but each time I tried to connect their WhatsApp and sms then automate their process I tend to receive

    • Looking to Flag or Tag contacts/ accounts on Zoho Desk?

      I am looking for a way to flag certain accounts and make it obvious on the views pages. So for example if a has a certain package or needs extra attention it is clear before even clicking on the ticket. This could be via adding a tag or flag onto an account,

    • setting date-time field from string

      hello everyone, i hope someone could help me. i have a date-time field in a form that i want to fill in from two separate fields of date, and time. i need to combine the two fields to a one date-time field but can make it work. i tried to convert the

    • Calendars and CRM Contacts

      I'm finding having multiple calendars in Zoho One so confusing. I have a few questions so I can get this straight. We have a meeting room that we have set up as a resource in Calendar. Can this be set up in Bookings and the CRM Calendar? Using Zoho Calendar,

    • Announcing new features in Trident for Mac (v1.23.0)

      Hello everyone! Trident for macOS (v.1.23.0) is here with interesting features and thoughtful enhancements to elevate your workplace communication and productivity. Here's a quick look at what's new. Record your meetings. You can now record audio and

    • Applying a record template

      Hi all, I can't figure this out. I hope you can help. The scenario: We have learners who have to complete a 'digital' journal with tasks in order to qualify. Those tasks, once completed, need a final signature from their 'Mentor', which will trigger their

    • Quickbooks invoice with Zoho Creator

      Is it possible to push data from Zoho Creator directly to an invoice on QuickBooks? If so, where can I find information on how to do this?

    • Help: Capture full page URL in hidden field when same Zoho Form is embedded on multiple pages (iframe)

      Hi all, Goal Use one Zoho Form across multiple pages and record the exact page URL (incl. subdomain + path + hash) where the user submitted it. Example pages: https://www.example.com/cargo/ https://www.example.com/cargo/containers/#contact https://cargo.example.com/auto/

    • Automatically Populate fields - HELP!

      There have been many discussions on this but I still can't seem to get it to work for me. I am trying to create a lookup field and have other fields automatically populate. Based on the instructions in the Help Center, I should be using the "on user input". It's just not working, here is the layout...   Both forms are in the same application. Current form is called Add Note, form to fetch records from is called Add Client. Lookup field is called Select_Client_ID related field in fetch form is called

    • Push notifications to portal users

      Hi all, it is possible to send push notifications to portal users?

    • Rename the attachment from record template pdf in the sendmail deluge script

      Hello Zoho, I urgently need a feature to rename record templates that I send via the sendmail feature. The program I created sends emails to clients with an invoices that have been created in the invoice database. If the user selects 3 invoice numbers,

    • Alt Text On Multiple Images

      I'm using Zoho Social to post to a charity website. Often the posts have multiple images, but it seems there is only one field for Alt Text. Does that mean I can only include it for the first image? Or is there a way to add alt text for all the imag

    • [SOLVED] Getting 401 when trying to download ticket attachment via API

      I'm able to use the API just fine to access ticket content. But I cannot download ticket attachment, keep getting 401 Client Error. Example: https://desk.zoho.com.au/api/v1/tickets/{ticket_id}/attachments/{attachment_id}/content?orgId={org_id} For headers,

    • Zoho project – Workdrive integration.

      Hello everyone, I was wondering something, we did the Zoho projects integration with Zoho Workdrive but nowhere during this integration we could set the location of the folders that would be automatically created in Workdrive. As I understand it, it creates

    • Scriptを埋め込みたくてOn User Inputを探しているのですが・・・

      編集モードで、Scriptを埋め込みたい項目を選択し、「項目のプロパティ」パネルで、その下のほうに「フィールドアクション（Field Actions）」という見出しがあると聞いたのですが、そもそも、それが見つかりません。そのために、On User Inputなどのイベントが選べません。 画面の英語を日本語に訳しているためにわけわからん状態になっているのかも知れませんが、わかる方、いらっしゃいますか？

    • Problem with cloud query exceeded

      When making a call I get this error, It is associated with a function in node that calls external APIs This is the code //tokenConsultar = thisapp.ObtenerToken(); //input.token = tokenConsultar.get("output").toMap().get("token");

    • Showing Total of Funnel Chart Legend (With Values) Items

      Hi, We are using the funnel type chart for displaying our zCRM sales pipeline stages and associated sum of deals in each stage.  We have configured the legend to show the associated value (Deal Amount (Sum)) for each stage adjacent to the legend items (Stages). Is there a way to display the total of the values in the same chart?  For example, at the bottom of the legend or maybe as a #merge placeholder in the legend title?

    • How to Convert VCF Contacts to CSV using Excel

      Many users switch from traditional address books to digital formats like vCard and CSV. These formats allow users to easily manage their contacts. However, a difficulty comes when you need to transfer your contact information to another application or

    • Field authorization for Linking module in Zoho CRM portal

      Hi guys! Currently building a customer portal for one of my clients, and I ran into a bit of a roadblock while using a multi-select lookup field. The issue is that there is no way to hide or define access in the linking module created by this multi-select

    • Kaizen #63 - Layout Rules in Zoho CRM

      Hello and welcome to another week of Kaizen! This week, we will be discussing Layout Rules in Zoho CRM. If you need to modify the layout of a module based on user inputs, or to show or hide sections based on the value of a specific field, we have got

    • Zoho CRM Portals - allow access per account

      Hello all, I am trying to set up a portal for our customer but I seem to be hitting an obstacle and I am not sure if it is my problem or a limitation in the software. So basically the way I understand the portal Contact Email > Each Record or Related

    • Android - Writer não acentua em Português com teclado bluetooth

      Gosto muito do Zoho, tanto o Note quando o Writer. Infelizmente, o Writer sofre de um problema sério: ao usar um teclado bluetooth, forma mais cômoda de lidar com um processador de texto, os acentos (todos!) da Língua Portuguesa não são aceitos. Todos

    • Set File Upload fields as mandatory

      Currently the CRM for some reason lacks the ability to set a file upload field as mandatory So we have an issue We have a requirement that before a Deal stage is set as Deal is Won the member needs to upload a file Now for some weird reason in Zoho I

    • Editing HTML in Zoho CRM Email Template

      I am trying to create a template within the CRM email option, but need to be able to use custom HTML. There does not seem to be a way to do so.

    • Ability to CC on a mass email

      Ability to CC someone on a mass email.

    • How to make attachments mandatory

      I want the user to be unable to mark an opportunity as Closed – Won if it doesn’t have any attachments. I’ve already tried client scripts and functions, but nothing worked.

    • SLA Ticket Report

      From data to decisions: A deep dive into ticketing system reports Service level agreement (SLA) ticket reports in a help desk system are crucial for ensuring that services are delivered according to established commitments. They help maintain accountability

    • Zoho Backstage - PCI Compliance / Web Security

      I have a couple of questions related to Backstage and payment processing.... 1. my purchasing division is not giving approval to use Backstage yet because of some security issues. In order for us to take payments via a payment gateway like Authorize.net

    • Zoho Tables August 2025 Update: Faster and Smoother

      We’ve been working behind the scenes to make Zoho Tables faster, lighter, and more reliable. Here are the highlights: Faster Response Times Optimised the way responses are generated. Reduced memory consumption by 20–25%, leading to smoother performance

    • Video Upload from app says "unsupported aspect ratio" but is verified to be correct.

      I and my social media person are experiencing a problem where Social will not accept video uploads to Instagram. The error we receive is "unsupported aspect ratio" but looking directly at the file in question we see that the width and ratio both match

    • Disposable Email Addresses

      Dear zMail Team, Can you also bring out a few disposable email addresses for each accounts? That way occasional registrations and imminent spam from them can be largely solved right? ---- Deepak Vasudevan http://thamizhththendral.blogspot.com/

    • Zoho sheet - Zoho expense

      I want to schedule to create an expense using Zoho Sheet and flow. That is the EMI that I pay on a particular date to the bank and should be itemised, like principal and interest on the loan. Can someone help me in this regard??

    • Ability to configure a schedule/shift for each user and/or crew in Zoho FSM

      Hello, In our team of Field Agents, we have different shifts. Some field agent always work from 7:00 AM to 4:00 PM while others work the evening shift like 4:00 PM to 11:00 PM. Sometime shift are on weekdays only or on weekend. It would be great to be

    • Free webinar: Streamlining customer service paperwork with the Zoho Sign extension for Zoho Desk

      Hello Everyone! Have you been wondering about bridging the gap between digitised customer service and business paperwork? Join our free webinar to learn how you can do this by connecting Zoho Sign, our digital signature app, with Zoho Desk, our online

    • Zoho Books | Product updates | July 2025

      Hello users, We’ve rolled out new features and enhancements in Zoho Books. From plan-based trials to the option to mark PDF templates as inactive, explore the updates designed to enhance your bookkeeping experience. Introducing Plan Based Trials in Zoho

    • Mail Search should allow grouping by conversation like Gmail.

      Having switched from gmail I have found the search function hard to use. Mostly because mail is not grouped by conversation in search. If I search for a word when looking for a conversation had with someone then sometimes 10 emails will come up from the

    • Improve Zoho Learn updated article notifications

      I noticed today while updating an article, that the notification users get says "[User Name] has published article [Article Name]..." My feedback to the product team is that it would be really helpful for an end user, if the system notification differentiated

    • Safari Support

      Safari, the world's second largest browser, zoho desk does not officially or fully support. That needs to change.

    • Can I get images from an "Image Upload" field in a webhook?

      I want to send images from 2 "image upload" fields via a webhook. Is this possible?

    • Next Page