Function #60: Automatically generate invoices for unbilled timesheets at regular intervals

Function #60: Automatically generate invoices for unbilled timesheets at regular intervals



Hello everyone, and welcome back to our series!

In the Time Tracking section of Zoho Books, you can set up projects to track services provided to your clients and log timesheets to record the time spent completing them. These timesheets can be billed to your clients, helping you recognize revenue from the services. Today’s function aims to automate the billing process using a daily Scheduler that checks for any unbilled timesheets and generates invoices automatically. 

There's an option called "Associate Projects Hours" for Recurring Invoices. If you select this option, any unbilled timesheets up to the date of the child invoice will be included in that invoice. This is a way to automate the billing of timesheets at specific intervals. However, when creating Recurring Invoices, it's mandatory to select an item. If you prefer to skip this and only want to include timesheets in the invoices, then today's function is ideal for you.

Here's how it works:

Let’s take the example of Mr. John Hector, who provides corporate training services through both short workshops and long-term programs. He charges his clients based on the type of program, with billing done on a daily, weekly, or monthly basis. For instance, one of his clients is participating in his "Corporate Communication Skills" program, and John has arranged to bill them at the end of each month for the total hours of training provided.

To handle this in Zoho Books, John would normally create a time-based project, log the training hours using timesheets, and at the end of the month, manually review the unbilled hours to generate an invoice.

However, with today's scheduler, the billing process can be automated. By specifying key billing details—such as the Billing Date, Cycle, and Frequency—in the project’s custom fields, the scheduler will automatically generate invoices for any unbilled timesheets on the specified billing date. It will continue to raise invoices for each billing cycle, eliminating the need for John to manually consolidate timesheets and raise invoices. 



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 Dropdown-type custom field called "Billing Cycle" for projects. This field should include the options: Daily, Weekly, and Monthly. The selected option will determine how often invoices are generated.



3. Create a Number-type custom field called "Billing Frequency" for projects. If you want to bill timesheets every 2 weeks, select "Weekly" in the "Billing Cycle" field and enter 2 here. If the "Billing Cycle" is set to "Daily," enter 1 in this field.



4. Create a Date-type custom field called "Billing Date" for projects. This field allows you to select the date on which invoices should be generated for each billing frequency. 



5. Create a Checkbox-type custom field called "Automate Billing?" for projects. The scheduler will run only for those projects where the field is ticked. If a project has ended and you no longer want to generate invoices, simply edit the project and uncheck the box.

Note: If "Automate Billing?" is ticked without specifying the billing cycle, frequency, or date, the system will automatically generate invoices daily for the projects.



Setting up the Scheduler:

Navigate to Settings -> Automation -> Schedules -> +New Schedule -> Set up the schedule as shown in the screenshot -> Add the code from this GitHub link -> Save. 



Give this scheduler a try and let us know what you think! If you need assistance with implementation, feel free to contact our Support team at support[at]zohobooks[dot]com. We are happy to help.

Regards,
Shireen Farhana
Zoho Books

    • Recent Topics

    • why my account is private?

      when i post on zohodesk see only agent only

    • Getting ZOHO Invoice certified in Portugal?

      Hello, We are ZOHO partners in Portugal and here, all the invoice software has to be certified by the government and ZOHO Invoice still isn´t certified. Any plans? Btw, we can help on this process, since we have a client that knows how to get the software certified. Thank you.

    • 500 Internal Server Error

      I have been trying to create my first app in Creator, but have been getting the 500: Internal Server Error. When I used the Create New Application link, it gave me the error after naming the application. After logging out, and back in, the application that I created was in the list, but when I try to open it to start creating my app, it gives me the 500: Internal Server Error. Please help! Also, I tried making my named app public, but I even get the error when trying to do that.

    • Client Script | Update - Client Script Support For Portals

      Dear All! We are excited to announce the highly anticipated feature: Client Script support for Portals. We understand that many of you have been eagerly awaiting this enhancement, and we are pleased to inform you that this support is now live for all

    • Professional Plan not activated after payment

      I purchased the Professional Plan for 11 users (Subscription ID: RPEU2000980748325) on 12 September 2025, and the payment has been successfully processed. However, even after more than 24 hours, my CRM account still shows “Upgrade” and behaves like a

    • how to edit the converted lead records?

      so I can fetch the converted leads records using API (COQL), using this endpoint https://www.zohoapis.com/crm/v5/coql and using COQL filter Converted__s=true for some reasons I need to change the value from a field in a converted lead record. When I try

    • Auto Update Event Field Value on Create/Edit

      Hi there, I know this question has been posted multiple times and I've been trying many of the proposed similar scripts for a while now but nothing seems to work... what might I do wrong? The error I receive is this: Value given for the variable 'meetingId'

    • Pre-orders at Zoho Commerce

      We plan to have regular producs that are avaliable for purchase now and we plan to have products that will be avaliable in 2-4 weeks. How we can take the pre-orders for these products? We need to take the money for the product now, but the delivery will

    • Constant color of a legend value

      It would be nice if we can set a constant color/pattern to a value when creating a chart. We would often use the same value in different graph options and I always have to copy the color that we've set to a certain value from a previous graph to make

    • Zoho Pagesense really this slow??? 5s delay...

      I put the pagesense on my website (hosted by webflow and fast) and it caused a 5s delay to load. do other people face similar delays?

    • Payroll and BAS ( Australian tax report format )

      Hello , I am evaluating Zoho Books and I find the interface very intuitive and straight forward. My company is currently using Quickbooks Premier the Australian version. Before we can consider moving the service we would need to have the following addressed : 1.Payroll 2.BAS ( business activity statement ) for tax purposes 3.Some form of local backup and possible export of data to a widely accepted format. Regards Codrin Mitin

    • Problem with Email an invoice with multiple attachments using API

      I have an invoice with 3 attachments. When I send an email manually using the UI, everything works correctly. I receive an email with three attachments. The problem occurs when I try to initiate sending an email using the API. The email comes with only

    • Page Layouts for Standard Modules like CRM

      For standard modules like quotes, invoices, purchase orders, etc, it would be a great feature to be able to create custom page layouts with custom fields in Zoho Books similar to how you can in Zoho CRM. For example, and my current use case, I have a

    • Non-depreciating fixed asset

      Hi! There are non-depreciable fixed assets (e.g. land). It would be very useful to be able to create a new type of fixed asset (within the fixed assets module) with a ‘No depreciation’ depreciation method. There is always the option of recording land

    • Fixed asset management

      I want to know if there is any individual module for fixed assets management

    • One time sale item in billing automatically detects as service

      if i have some items which i don't want to add in my "item" list because its sold only for one time. but when i type item name in invoice, it (system) automatically takes it as a service and despite of HSN , it shows SAC code to be entered. if its selectable i.e. either item or service , it would be very helpful and a must have feature.

    • Project template after project creation

      How can I apply a project template AFTER the project has been created?

    • convert the project to templet

      i have some deployment ME product for different customer , i need to create a fixed template for use it rather then keeping creating this template every time

    • Seriously - Create multiple contacts for leads, (With Company as lead) Zoho CRM

      In Zoho CRM, considering a comapny as a lead, you need us to allow addition of more than one contact. Currently the Lead Section is missing "Add contact" feature which is available in "Accounts". When you know that a particular lead can have multiple

    • Related Module in Sharing Rules

      Zoho CRM team recently added the feature to filter records by Related Records It will be really beneficial if we can have this feature for Sharing Rules as well

    • Assignment Thresholds Resetting After Lead Conversion

      Hello everyone, We're facing an issue with Zoho CRM's lead assignment thresholds that makes them unsuitable for our workflow. I'm hoping to find a potential workaround or solution from the community. Here’s our current process: A new lead is created automatically

    • Zoho CRM Analytics - Allow To Reorder Dashboards

      I would like to suggest that you add the ability to reorder dashboards in the Analytics Module. I can see that this has been requested some time ago, the latest 9 years ago. I am not sure if this is a big or small endeavor, but such a small fix can go

    • Territory view for custom modules?

      I have recently activated territories however I can't seem to find how to use territories for custom modules? These modules have territories:  Contacts /  Accounts / Opportunities These modules don't have territories:   Buildings (custom module) and 

    • Zoho Books - How to Invoke a Custom Function in Schedulers

      We have multiple schedulers that send emails to customers in batches. Currently, we are maintaining the same code across several schedulers. Is it possible to use a custom function inside a scheduler script? If yes, how can we invoke the custom function

    • Approval Process Comments

      Is it possible to view the comments entered during the approval or rejection of a record in the approval process? If not, is there a way to require a field to be completed upon approval or rejection?

    • Login for test case

      Had a few questions regarding authentication test cases and couldn't find an answer in the the docs. 1. If an app like Zoho Creator requires authentication before providing access, do I need to create a login function and add it to each test case? 2.

    • Zoho / Outlook Calendar sync

      The current Marketplace -> Microsoft -> Meetings integration needs 2 changes. 1. The current language for the Two-Way sync option should be changed. It currently states, "Sync both your Zoho CRM Calendar and Office 365 Calendar meetings with each other."

    • Customer members area

      Does FSM support a customer members area? If not what do you propose we use if we want the data used in FSM for customers to give them an area / login to see past orders, create new orders and general announcements.

    • Zoho Books-Accounting on the Go Series!

      Dear users, Continuing in the spirit of our 'Function Fridays' series, where we've been sharing custom function scripts to automate your back office operations, we're thrilled to introduce our latest initiative – the 'Zoho Books-Accounting on the Go Series'.

    • Desktop app doesn't support notecards created on Android

      Hi, Does anybody have same problem? Some of last notecards created on Android app (v. 6.6) doesn't show in desktop app (v. 3.5.5). I see these note cards but whith they appear with exclamation mark in yellow triangle (see screenshot) and when I try to

    • Notes created in mobile can no longer be accessed in desktop

      Working with a 2013 Mac running OS 10.14.6; Desktop Notebook version 4.5.3. Using Motorola Moto G Power 5G - 2024; Android app version 6.7 I have been using Notebook for some years. Starting several weeks ago, the notes newly created ion the phone can

    • Function #49: Manage varying installment payments using Zoho Books

      . Hello everyone, and welcome back to our series! Last week, we discussed automating the collection of fixed installment payments in Zoho Books. But what if your payment structure involves charging varying percentages of the invoice total as installments?

    • Zoho Writer - Option to Export as .zdoc format

      I've noticed that it's not possible to export a Zoho Writer Document in the .zdoc format. Isn't zdoc, Zoho Writer's own format? My use case is that I sometimes need to create quite complex documents with floating elements, which sometimes need to become

    • Is it possible for contacts to "Re-enter" a workflow in Zoho Campaign?

      We are currently working on a way to automatically add users to from one list to other lists based on specific criteria, but can't seem to find a native way of doing this so we are trying to use Workflows to do this. So, for example, if a user's status is set to "Active," then they should be added to the list "Active Users." If the same user's status is then set to "Paused," they should be added to the list "Paused Users" and removed from the list "Active Users." This works fine for the first go

    • Bulk upload images and specifications to products

      Hi, Many users have asked this over the years and I am also asking the same. Is there any way in which we can bulk upload product (variant) images and product specifications. The current way to upload/select image for every variant is too cumbersome.

    • Out of Office for Just One of My Alias Email

      Can I set up the Out of Office Reply for Just One of my Alias Email Addresses?

    • Can I map multiple Surveys into the CRM using the same fields?

      Hello, We are a healthcare practice that offers two distinct services (Nutrition and Primary Care). We use Zoho Survey for our lead generation form (Get Started Survey), which allows people to express interest in one of the two services and even allows

    • Dealing with API responses where integers have more than 16 digits

      Hi there How do I deal with an api response contaning an int or float with more than 16 digits (before any decimal places for a float). I constantly receive the response "Unable to cast the 'BigInteger' value into a 'BIGINT' value because the input is

    • Can't change form's original name in URL

      Hi all, I have been duplicating + editing forms for jobs regarding the same department to maintain formatting + styling. The issue I've not run into is because I've duplicated it from an existing form, the URL doesn't seem to want to update with the new

    • Need Inactive accounts to be visible in Reports in Zoho Books

      I N=need Inactive accounts to be visible in Reports in Zoho Books to do recons of the accounts but when i see the same they are not visible in the Accountant - Account Transactions report

    • Next Page