Fetching whole month availability via API

Fetching whole month availability via API

We are currently building a custom calendar component that books directly into our client's Zoho Bookings instance. The challenge we are facing is that your API only allows fetching availability one day at a time, which is problematic.

Our second workaround was to make multiple parallel API calls to fetch the entire month's availability, but unfortunately, we are getting throttled by the "429 Too Many Requests" error.

It's important to note that we are not exceeding our quota (the client has 17 users) but are getting blocked due to making too many requests in a short period of time. As a result, we get blocked after attempting to load 3-4 weeks' worth of availability. If 2-3 users use the date picker simultaneously, the system gets blocked even faster.

This issue essentially makes the Zoho Bookings API unusable. We need a solution, as this limitation may force us to recommend that the client stop using Zoho Bookings.

    • Sticky Posts

    • Zoho Bookings know-how: A hands-on workshop series

      Hello! We’re conducting a hands-on workshop series to help simplify appointment scheduling for your business with Zoho Bookings. We’ll be covering various functionalities and showing how you can leverage them for your business across five different sessions.
    • Announcing: custom color palette + free workshop

      Hello everyone, We're excited to share new feature in Zoho Bookings—a color palette within booking page themes. You'll find this option under Manage Bookings > Workspaces > Booking Page Themes. You can customize the color of every element in your booking page and even alter the transparency of your background image. Please note that this is a paid feature included in the Basic and Premium plans. At the moment, it's available only under the Modern Web theme. This means you can create billions (7,
    • Complete walk-through of Zoho Bookings (video)

      Save time for both you and your customers. Use Zoho Bookings, the appointment scheduling app from Zoho, to free yourself from email and paper-based scheduling. Zoho Bookings can give you a common calendar by syncing multiple calendars, including yours and your staff's. Your customers can book a time convenient for them, and pay for services, through your website or the customizable webpage features available in Zoho Bookings. They'll also get emails reminding them about their appointments and any
    • New Features: Service Availability and staff booking page themes!

      Dear All,  Want a dedicated schedule for your one-on-one services? How would it feel to have one-on-one services open for consultations only during certain times? You need a superpower to make that happen and we give it to you - Service Availability is
    • Zoho Bookings has a new pricing - Pay per user

      Dear customers, Businesses around the world use Zoho Bookings. Customers have booked 1.5 million appointments and over 200K online meetings using Bookings. We are only set to cross more milestones, thanks to your support. We are excited to introduce to
    • Recent Topics

    • Ability to Set Text Direction for Individual Cells in Zoho Sheet

      Dear Zoho Sheet Team, We hope you are doing well. We would like to request an enhancement in Zoho Sheet that allows users to set the text direction (right-to-left or left-to-right) for individual cells, similar to what is available in Google Sheets. Use
    • Support Bots and Automations in External Channels

      Hello Zoho Cliq Team, How are you? We actively use Zoho Cliq for collaboration, including with our external developers. For this purpose, external channels are a key tool since they work seamlessly within the same interface as all of our other channels
    • Add Flexible Recurrence Options for Meeting Scheduling in Zoho Cliq (e.g., Every 2 Weeks)

      Hello Zoho Cliq Team, We hope you are doing well. Currently, when scheduling a meeting inside Zoho Cliq, the recurrence options are limited to Daily, Weekly, Monthly, and Yearly. There is no ability to set a meeting to occur every X weeks — for example,
    • Add Comprehensive Accessibility Features to Zoho Writer

      Hello Zoho Writer Team, We hope you are doing well. We would like to submit a feature request to enhance Zoho Writer with a full set of accessibility tools, similar to the accessibility options already available in the Zoho Desk agent interface. 🚧 Current
    • Enable Screen Recording in Zoho WorkDrive Mobile Apps (Android & iOS)

      Hi Zoho WorkDrive Team, How are you? We are enthusiastic Zoho One users and rely heavily on Zoho WorkDrive for internal collaboration and content sharing. The screen-recording feature in the WorkDrive web app (similar to Loom) is extremely useful- however,
    • Make Camera Overlay & Recording Controls Visible in All Screen-Sharing Options

      Hi Zoho WorkDrive Team, Hope you are doing well. We would like to request an improvement to the screen-recording experience in Zoho WorkDrive. Current Limitation: At the moment the recording controls are visible only inside the Zoho WorkDrive tab. When
    • Add Camera Background Blur During Recording

      Hi Zoho WorkDrive Team, Hope everything is well. We would like to request an enhancement to the video recording feature in Zoho WorkDrive. Currently, the camera preview displayed during a recording does not support background blur. This is an essential
    • Properly Capture Dropdowns & Hover Elements When Recording a Window/Tab

      Hi Zoho WorkDrive Team, Hope you are doing great. We encountered a limitation when recording a selected window or browser tab: Certain UI elements, such as dropdown lists, hover menus, and overlays, are not captured unless we record the entire screen.
    • Support Uploading YouTube Videos Longer Than 60 Minutes

      Hi Zoho Social Team, How are you? We would like to request support for uploading YouTube videos longer than 60 minutes directly through Zoho Social. Your support team informed us that Zoho Social currently cannot upload videos over 60 minutes due to “API
    • can't see contact's last activity when in list view

      A contact has past activities recorded in their name. When I go to list view, no Last Activity is displaying. How do i fix this?
    • AM unable to edit my footer

      Hi, I had created my footer, was trying to reduce the width of the same, not sure what i pressed, but footer has taken over the page totally, unable to edit the footer now. cant even view the page. 
    • Bin Tracking with eBay integration

      When trying to setup bin tracking on items that are linked to eBay listings using the built-in Zoho eBay integration, I keep getting this error: "Storage Tracking cannot be enabled for items that are manually fulfiled or for serial/batch items tracked
    • Best practice to handle 50+ invokeurl calls in a loop without hitting the 30-second timeout?

      Hi everyone, I am working on a custom Deluge function where I have a Map containing around 50+ key-value pairs. I need to iterate through this Map using a for each loop and make a GET API call (invokeurl) for each item. The Problem: Because of the 50+
    • sending email with another account

      Hello there, i write there for an our costumer request. They want to send email from CRM with a different email (confirmed and added to zoho profile). For example they use account@zilium.com but with this account they want to send (not only with email
    • Read Thread Details

      Does anyone know how to "read" the complete thread details in a ticket? I figured out how to pull a summary of the threads using a webhook, but it doesn't have all the details I want. I tried to create a loop in flow, which should have worked, but instead
    • All new Address Field in Zoho CRM: maintain structured and accurate address inputs

      Availability Update: 29 September 2025: It's currently available for all new sign-ups and for existing Zoho CRM orgs which are in the Professional edition exclusively for IN DC users. 2 March 2026: Available to users in all DCs except US and EU DC. 24
    • Associate ORG modules using Connected Records in Zoho CRM For Everyone

      Hello Everyone, We are here with a set of new enhancements to Connected Records in Zoho CRM For Everyone. We've made module connections clearer, easier to manage, and less confusing. What's New? Associate Org modules as Connected Records. Clear separation
    • What stops me from packaging and shipping an order when the inventory is negative?

      It seems if the inventory value is negative, that Zoho Inventory should not allow me to create a Package and Ship it.   But, there seems to be nothing to stop me from doing that other than when I go to physically package the item and realize that there is no stock. There also seems to be nothing on the screen that even indicates to me that I should not package and ship.  To me this is the fundamental point of an inventory system.  Am I doing something wrong?   
    • Let us view and export the full price books data from CRM

      I quote out of CRM, some of my clients have specialised pricing for specific products - therefore we use Price Books to manage these special prices. I can only see the breakdown of the products listed in the price book and the specialised pricing for
    • Deluge error on updating datetime field

      Hi, while updating date-time field , i am getting this error  {"code":"INVALID_DATA","details":{"expected_data_type":"datetime","api_name":"Date_Time_1"},"message":"invalid data","status":"error"} Here is the code , i have tried leads = zoho.crm.getRecordById("Leads",
    • 商談の特定ステージ選択時に、集計項目の入力を必須化したい

      こんにちは。Zoho CRMの商談管理で以下を実現したいです。レイアウトルールでは、集計項目を条件に選択できず実現できておりません。よい方法があればご教示いただけると嬉しいです。 ■やりたいこと 商談で特定のステージに変更する場合に、特定の集計項目(同じ商談データ内の項目。以降、集計項目Aとする)を入力必須化したい。 ■概要、状況 ・集計項目Aは、別のオブジェクトで、商談に関連する月ごとの売上を集計している数値項目 ・見積を顧客に提示した際に、集計項目Aに見積金額と一致するようにデータ登録する運用をしている
    • inventory based on bills and not physical stock

      Hello, I have noticed a very annoying issue with zoho books/inventory. I use composite items. If I have an sub assembly item on back order, I am unable to make up the composite item, even when I have received the goods and it is in my stock. I have to convert the PO into a BILL in order for the item to show as 'Accounting Stock'. The problem is that the supplier Invoice is not shipped with the goods, but can follow even a week later. So I have to make the bill have a 'dummy name and number' until
    • Zoho Inventory. Preventing Negative Stock in Sales Orders – Best Practices?

      Dear Zoho Inventory Community, We’re a small business using Zoho Inventory with a team of sales managers. Unfortunately, some employees occasionally overlook stock levels during order processing, leading to negative inventory issues. Is there a way to
    • No option for pick up in Zoho Books / Inventory but yes on commerce

      Is it planned to release soon on books/inventory?
    • Update to CRM Custom Buttons: Collect Users' Location

      Hello everyone! Buttons in Zoho CRM allow you to extend the default CRM capabilities for your bespoke business needs. It provides the flexibility to connect to any third-party application to perform necessary actions. Wouldn't it be better, if those buttons
    • Speed (again!)

      Same old story again: impossible to work at this "speed". Category NOTES!
    • Marketing Tip #27: Add a favicon and social preview image for your online store

      Small branding details can make a big difference in how professional your store looks online. A favicon (the tiny icon shown in browser tabs) helps customers recognize your store instantly, especially when they have multiple tabs open. A social preview
    • Knowledge base: The nitty-gritty of SEO tags

      A well-optimized knowledge base with great SEO can benefit your company by allowing customers to find help articles and support resources using search engines. This enables customers to quickly and efficiently find the information they need without direct
    • Zoho Social API for generating draft posts from a third-party app ?

      Hello everyone, I hope you are all well. I have a question regarding Zoho Social. I am developing an application that generates social media posts, and I would like to be able to incorporate a feature that allows saving these posts as drafts in Zoho Social.
    • How to list WorkDrive folder contents using API

      I'm trying to read folder contents using a Deluge script. The code below returns {"errors":[{"id":"F6016","title":"URL Rule is not configured"}]}". I've tried using the search API and seen similar errors. I have proved that the connection works by creating
    • Add Custom Fields only in Customer module and not on supplier module!? Is not there a way to do that!?

      I am trying to create custom fields on clients module but it also gets created on suppliers module; which of course does not make sense at all as a lot of custom fields are client or supplier specific but never both. I am missing something? This seems
    • Solving the bug in Zoho Writer API for styling

      So... the Zoho Writer APIs for programatically creating a document do not respect a template's style. The result is that any document you generate via API needs to be manually, paragraph by paragraph, reformatted. That bug alone is sufficient to render
    • how-to insert a new within a cell

      If I am in MS excel in a cell that I need to have multiple line, I would use ctrl-enter to create new line within a cell. How can do the same function in ZoHo Sheet?
    • Zoho Books | Product updates | February 2026

      Hello users, We’ve rolled out new features and enhancements in Zoho Books. From Advanced Reporting Tags to the ability to mark projects as completed, explore the latest updates designed to improve your bookkeeping experience. Introducing Advanced Reporting
    • Partial payments for retainer invoices

      When a customer does not pay the entire retainer invoice there is no way to apply a partial payment. PLEASE add this function.
    • Need to set workflow or journey wait time (time delay) in minutes, not hours

      Minimum wait time for both Campaigns workflows and Marketing Automation journeys is one hour. I need one or the other to be set to several minutes (fraction of the hour). I tried to solve this by entering a fraction but the wait time data type is an integer
    • Zoho Book - Banking Module - Cash Credit account

      I have a CC account with a bank. I initially added the account as a 'Bank Account' under the banking module in Zoho Books. However, this CC Bank Account is showing as an asset instead of a liability. I have added the account as a credit card account but
    • Comments aren't visible in shared spreadsheet

      I would like to send a spreadsheet to people who can use it to help solve a problem as a one off use unique to them. They will have to enter data in the sheet. I have comments attached to some of the cells to explain the purpose of the data being collected.
    • Custom button for list page

      Why is my 'List Page - Bulk Action Menu' button in the Packages module not autopopulating the List argument with selected record IDs?
    • Designing Multi-Step Workflow System in Zoho Creator + Deluge (Startup Build – Exploring Advanced Architecture + Partnerships)

      Hi everyone, I’m currently building a Zoho-based system as part of an early-stage startup, and I’m looking to connect with others who have experience designing more advanced workflows in Creator + Deluge. This started as a standard application, but it’s
    • Next Page