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

        • Zoho CRM Community Digest - October 2025 | Part 1

          Hello Everyone! Here's a quick recap of first two weeks of October! Product Updates: Zoho CRM Android App Update: Surveys, Blueprints, and Smarter Mobile Features! Zoho CRM’s Android app just got a useful upgrade. You can now share records, upload your
        • Automate onboarding emails with CRM Workflow and Accounts module

          We’re a B2B SaaS company selling to public-sector organisations. Each organisation is stored as an Account in Zoho CRM, and each organisation typically has multiple associated Contacts. Our backend syncs product-usage data (setup status, user activity,
        • Using a CRM Client Script Button to create a Books Invoice

          Hello, I need help handling error messages returned to my client script from a function. The scenario I have setup a client script button which is available from each Deal. This CS executes a crm function, which in turn creates an invoice based on the
        • Important update: Enhanced security measures for account operations in Zoho Cliq

          Greetings from the Zoho Cliq team! We’d like to share an important security update that has an influence on some admin actions such as password reset, MFA reset, and MFA backup code generation. What’s changing? With our latest security enhancements, these
        • Sales Receipts Duplicating when I run reports why and how do we rectify this and any other report if this happens

          find attached extract of my report
        • No Functional Autosave or Manual Save Button

          Application : Zoho Notebook So I wanted to try Zoho Notebook(On Ubuntu) as an application, I installed the application and went solving my LeetCode problems visually(Drawing mode), at one point the app just stopped saving anything... Every time I tried
        • Enterprise subscription support

          My organization sells subscription services to enterprise customers, which is a different model from the consumer subscription model that Zoho Billing has been designed to support and I beleve this capability should be added. An enterprise subscription
        • Issue with Creator's IF logic

          Hi, I found the following code produces unexpected results: if(-1.0 < 0.0000000) {       info "True"; } else {       info "False"; } if(-1.0 < 0.000000) {       info "True"; } else {       info "False"; } The output returned is: False True However, the
        • Need option to send Package PDF in shipment email (Shipment PDF is missing Lot info)

          Is there any way to automatically attach the Package PDF instead of (or alongside) the Shipment PDF in the notification emails? We really need this feature because the default Shipment PDF creates a blind spot for our customers. It does not display Batch/Lot
        • zoho creator view is not present in the workspace and blank reports

          Hi Support,  Users who have "write" permissions keep getting this error for all of our embedded reports all of a sudden. See screen shot below: Meanwhile, my developer permissions account sees a blank screen in view and edit mode as shown in the screenshots
        • Customize portal email template

          Can i fetch only first name of the user in portal email template instead of the below code Hi ${User.FULL_NAME}
        • Can't we let users decide which options they'd like to add at embed widget?

          It seems embed widget DOES NOT offer a feature, where users can choose options upon subscribing plans. What Zoho has instead, is that admins have to manually create plan with options. How come no one in Zoho dev team never raised issue about usability
        • Reupload and rename from one field to another field (file upload)

          Hi Everyone, Sorry, i have question to use invoke url for rename and reupload attachments file to another field. Tested on development mode. Zoho C6. Refer to https://www.zoho.com/creator/help/api/v2/upload-file.html look my error notification. Does anyone
        • Printing Multi-Page Reports (PDF Export)

          Hi, I am moving a report from Google's Looker Studio to Zoho Analytics and trying to reproduce the Looker page by page dashboard editing experience. With Google, what you see is what you get when you print to PDF. But I can't seem to create the same experience
        • Resume Harvester: New Enhancements for Faster Sourcing

          We’re excited to share a set of enhancements to Resume Harvester that make sourcing faster and more flexible. These updates help you cut down on repetitive steps, manage auto searches more efficiently, and review candidate profiles with ease. Why we built
        • I NEED TO NUMBER TO TEXT NO HERE

          =NUMBERTEXT NEEED
        • Error: View is not present in the workspace

          When saving a dashboard, user receives a popup with the following error. "View is not present in the workspace" What does this mean or refer to? There is no further insight given.
        • Dear Zoho CEO: Business Growth is about how you prioritise!

          All of us in business know that when you get your priorities right, your business grows. Zoho CRM and Zoho Books are excellent products, but sadly, Zoho Inventory continues to lag behind. Just this morning, I received yet another one-sided email about
        • Is there any way to send an Excel received by email to Dataprep?

          Every day I receive an email alert with an Excel file that I want to process through a Dataprep pipeline. To do this, I need to: -Save the file to disk -Open the pipeline -Run the pipeline -Update the source -Several clicks to select and open the saved
        • Bin Locations

          Dear all, I am wondering if someone has the ability to develop the bin locations option for zoho inventory (integrated with zoho books) Regards, Ryan
        • Create and populate a record in an instant: Introducing zero-shot field prompting to Zia's ICR

          A couple of months ago, we upgraded our in-house AI image detection and validation tool, Zia Vision, with intelligent character recognition (ICR). By training Zia with sample images, you could create and enrich CRM records with data extracted from standard
        • How to Prevent Users From Skipping LMS Videos in Zoho People

          How to Prevent Users From Skipping LMS Videos in Zoho People Hello Zoho Developers, In this blog, we will quickly look at how you can stop users from skipping or fast-forwarding videos in Zoho People LMS. Zoho People provides a feature called Disable
        • [Integration Edition] Deluge Learning Series – Custom API with Deluge | November 2025

          We’re excited to conclude this four-month Integration Edition of the Deluge Learning Series: Session 1 – Integrating Zoho Apps with Deluge Using Built-In Integration Tasks Session 2 – Integrating Zoho Apps with Deluge Using invokeURL and invokeAPI Session
        • Automate Backups

          This is a feature request. Consider adding an auto backup feature. Where when you turn it on, it will auto backup on the 15-day schedule. For additional consideration, allow for the export of module data via API calls. Thank you for your consideration.
        • Tips for Organizing Workflows and Improving Team Coordination in Zoho

          Hi everyone, I’m looking for some general advice on how different teams are organizing their daily work within Zoho’s apps. Our team recently expanded, and we’re trying to streamline how tasks, discussions, and documents are shared so everything stays
        • Pre-fill webforms in Recruit

          I don't want to use the career site portal (as I have my own already), but I would like to direct users to the application forms for each role, from my website job pages. Is there a way to pre-fill fields in Recruit application forms, so that I only have
        • Prevent user from viewing all records?

          I have a report that is meant to be used by vendors to view only the records that are assigned to them. All the vendor information is stored in a separate application, so I need to call a function to get the current user's ID (not the zoho user ID). The report settings criteria doesn't support using function calls, so instead I'm embedding the report in an html page like this: if (thisapp.Global.CurrentUserIs("Vendor")) {       personID = common.getLoggedInPersonID();       query = "Assigned_Vendor.ID="
        • Zoho Site pages not displaying in iframes

          I simply want to show a Zoho Site page inside an iframe on another non Zoho website. When testing this across many browsers, the iframe content simply does not appear. IE reports that the host does not allow their content to be displayed in iframes. Very disappointing. Is there a way around this please? Here is the URL of the page I would like to appear in an iframe. http://ips-properties-to-rent.zohosites.com
        • Zoho Inventory as connector in Zoho Creator

          Hello, It doesn't appear that Zoho Inventory is one of the many built in connectors in Zoho Creator? I see that there are non-Zoho inventory applications that have built in connectors such as Cin7, which leads me to believe that I'm missing something
        • Send Zoho Forms Link using Zoho CRM Email Templates

          I have set up Zoho Forms and CRM integration to pre-populate data from Zoho CRM to Zoho Forms. The setup is working fine. I have also created an email template in the Zoho CRM deals module to send Zoho forms links. So when I send an email using that template
        • My go to On Load Client Script - Fast, efficient, and works for ALL profiles; Hides everything except initial fields

          This is my on Load client script that I use for Create pages. I use a modified version for Edit and Display pages which you can create yourself using the same basic structure that I will give you below. First up, the script. Below that will be an explanation
        • CRM x WorkDrive: File storage for new CRM signups is now powered by WorkDrive

          Availability Editions: All DCs: All Release plan: Released for new signups in all DCs. It will be enabled for existing users in a phased manner in the upcoming months. Help documentation: Documents in Zoho CRM Manage folders in Documents tab Manage files
        • Custom Search using HTM+CSS Snippet

          Suppose I wanted to create my own list view using HTML and CSS snippets inside a Page with a custom search input at the top of the list (not the Search snippet). Without Javascript, is there a way to retrieve a user's entry from that search input and
        • Mass Update of Lookup Fields not possible

          Hello List I've created a custom field for Leads and Contacts 'Current Campaign'. This is very Handy as I can filter leads and then related them to a campaign. Everything ready, but then I realized that mass update doesn't work for lookup fields... a
        • Zoho CRM Kiosk Upload Files

          Hello all, We are trying out Kiosks at the moment to see where it can fit best in our business. We are still a bit off in the application but lets say we will sort this out. My question is the following - when I create a Kiosk I can add "File Upload"
        • Double opt-in notifications and customizable confirmation messages for your webforms

          Dear CRM Community, We are excited to announce a major upgrade to our Webforms feature. You can now customize the confirmation message shown to your users who double opt-in from your webform and also customize your confirmation emails when they submit
        • Has Anyone successfully integrated Zoho and Sage Intact?

          Hey all, We’re evaluating Zoho One + Sage Intacct and I’m trying to connect with anyone who has actually implemented the two together.Specifically, I’d love to know: -- Which functions you kept in Zoho vs. Intacct (e.g., Product Catalog, AR/AP, invoicing,
        • Introducing Image Upload Field

          Hello everyone, In this post we will discuss about the benefits and usage of the Image upload field. The field is available for standard and custom modules.  Usage: This field can be used to upload a gallery of images to a record and share the record with peers or customers. The record can be made accessible to users outside of Zoho CRM via Portals, where they can upload the necessary images. Preview, editing, and deleting images: The uploaded images can be directly edited and saved from the record
        • Trigger a Workflow Function if an Attachment (Related List) has been added

          Hello, I have a Case Module with a related list which is Attachment. I want to trigger a workflow if I added an attachment. I've seen some topics about this in zoho community that was posted few months ago and based on the answers, there is no trigger
        • Free webinar alert on November 19 - Email driven strategies - Master personality based styles

          Hello Zoho Community! Want to make email management easier, smarter, and more you? We’ve got just the session for you! Join our interactive, game-based webinar to discover how Zoho Mail adapts to your personality and work style. Learn practical hacks,
        • Next Page