Credit Calculation and Concurrency in Zoho CRM APIs
Hello everyone!
Welcome to Kaizen! This week, we will discuss credit calculation and concurrency in Zoho CRM APIs.
Credit calculation
API rate limiting is crucial to ensure fair resource distribution, maintain optimal service quality for all users, and safeguard our system from potential security threats. It helps us provide a consistent, reliable, and secure service to every user, while encouraging efficient and thoughtful API usage. API Usage in a CRM organization is calculated based on credits. When you make an API call, a specific number of credits are deducted from the total number of credits available to you. The number of credits available to you differs depending on the edition and user licence purchased. Below table shows the same.
Edition | Allowed Credits | Maximum Credits |
Free Edition | 5000 credits | 5000 credits |
Standard/Starter Edition | 50,000 credits + (Number of User licenses x 250) + Add-on credits | 100,000 credits |
Professional | 50,000 credits + (Number of User licenses x 500) + Add-on credits | 1,000,000 credits |
Enterprise/Zoho One | 50,000 credits + (Number of User licenses x 1000) + Add-on credits | 2,000,000 credits |
Ultimate/CRM Plus | 50,000 credits + (Number of User licenses x 2000) + Add-on credits | Unlimited |
If you think you will need more API credits in addition to the daily allowed limit, you can purchase additional credits.
The API Rate Limit is for a rolling window of 24 hours i.e., for every API call, we will check the API credits consumed in the last 24 hours to see whether the current API call can be allowed or not. When you make the very first API call , a 24 hour window begins. The API credits you used at each time interval will be freed up after 24 hours corresponding to each time interval.
Consider the above example where we assume that you are making API calls starting from 9 AM. The total available credits are 5000. For simplicity, let us consider that there are no API calls made on the previous day and no additional credits were purchased.
Between 9:00 AM and 9:05 AM on day 1, you use up 100 credits and you are left with 4900 credits . Since no API calls were made the previous day, you have no API credits getting freed up at that time. Between 9:05 AM and 9:10 AM, you use up 150 credits, leaving you with 4750 credits. Let us assume that you exhausted your available limit by 8.45 AM the next day.
At 9 AM on day 2, 100 API credits used on the previous day (day 1) will be freed up. Similarly, at 9:05 AM on day 2 , 150 credits will be freed. In this case API calls between 8:45 AM and 9 AM will result in system errors.
Let us consider the same scenario if you had purchased add-on credits. After you exhaust your available limit by 8:45 AM on day 2, the credits for further API calls will be considered from the purchased add-on credits. At 9 AM, when the 100 API credits used on the previous day are freed up they are available for your use instead of add-on credits.
Concurrency
In addition to 24 hour rolling window throttler, Zoho CRM has concurrency limit being applied for APIs. It will limit the no of parallel API calls being active at one time instance. Concurrency limit is checked per org per OAuth app. Concurrency limit differs based on your Zoho CRM edition.
Edition | Concurrency limit for an Org/App |
Free | 5 |
Standard/Starter | 10 |
Professional | 15 |
Enterprise/Zoho One | 20 |
Ultimate/CRM Plus | 25 |
Let's assume your organization has a concurrency limit set at 10. A sequence of API calls are made one after another. When all these API calls are still in process with each API call you make, the number of concurrent API calls increases incrementally. Initially, when you make the first API call, concurrency is 1. For the second API call made before the end of the first API call, concurrency becomes 2, and so on. This scenario is shown in the picture above. Once you reach the 10th API call, concurrency reaches its maximum limit of 10. As a result, the 11th API call fails.
However, let's assume that the 5th API call completes its process, thereby reducing the concurrency level to 9. In this state, the 12th API call can be made successfully without encountering any errors.
Sub-concurrency
Some APIs will take much more computing resources than other APIs. For example, an Insert Records API call for a 1000 records will take much more resources than a Get Leads API call for a particular lead id.
For such APIs, we'll apply a separate concurrency limit namely sub-concurrency limit to ensure that the APIs are being used responsibly. The APIs that will falls under the sub-concurrency limit are
- Get Records with cvid or sort_by parameters
- Convert Lead
- Insert, Update, or Upsert records (when the record count is greater than 10)
- Send Mail
- Search records API invoked from function
- Query API
- Composite API
Across all editions of Zoho CRM, the sub-concurrency limit is set as 10. You can make 10 concurrent requests for a combination of the above listed APIs or 10 concurrent requests of one of the APIs. However, if the total number of sub-concurrent requests exceeds 10, the system will generate a "TOO_MANY_REQUESTS" error.
Let's understand how concurrency and sub-concurrency apply together to your API calls. Assume that in your organization, the concurrency limit is set at 12 and sub-concurrency limit is set at 10.
We'll consider a case where send mail API call has been fired in parallel 11 times, for which the sub-concurrency is applicable. For the first 10 send mail API calls, there won't be any error and sub-concurrency limit will reach it's maximum allowed limit of 10. When the 11th API call is made, the error "TOO_MANY_REQUESTS" will be thrown even though the concurrency limit of 12 has not reached .
Now, let's consider the 12th API call, doesn't fall under the category of API calls subject to the sub-concurrency limit, say it is a normal GET records call with just fields & ids parameter. This call goes through successfully without encountering any errors. Similarly, the 13th API call, a GET user API call, also goes through. At this point, the concurrency is 12, and the concurrency limit is set at 12 as well. The 14th API call will result in an error because the concurrency limit exceeded. In short, the number of API calls allowed at a time depends on the concurrency limit and sub-concurrency limit.
We hope you found this post useful and it increased your understanding. Stay tuned for more.
Cheers!
Mable
Access your files securely from anywhere
New to Zoho Recruit?
Zoho Developer Community
New to Zoho LandingPage?
Zoho LandingPage Resources
New to Zoho Survey?
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Bigin?
Topic Participants
Mable Mary M P
David
Praveen Sankar
Sticky Posts
Kaizen #197: Frequently Asked Questions on GraphQL APIs
🎊 Nearing 200th Kaizen Post – We want to hear from you! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.Kaizen #198: Using Client Script for Custom Validation in Blueprint
Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.Celebrating 200 posts of Kaizen! Share your ideas for the milestone post
Hello Developers, We launched the Kaizen series in 2019 to share helpful content to support your Zoho CRM development journey. Staying true to its spirit—Kaizen Series: Continuous Improvement for Developer Experience—we've shared everything from FAQsKaizen #193: Creating different fields in Zoho CRM through API
🎊 Nearing 200th Kaizen Post – We want to hear from you! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.Client Script | Update - Introducing Commands in Client Script!
Have you ever wished you could trigger Client Script from contexts other than just the supported pages and events? Have you ever wanted to leverage the advantage of Client Script at your finger tip? Discover the power of Client Script - Commands! Commands
New to Zoho TeamInbox?
Zoho TeamInbox Resources
Zoho CRM Plus Resources
Zoho Books Resources
Zoho Subscriptions Resources
Zoho Projects Resources
Zoho Sprints Resources
Qntrl Resources
Zoho Creator Resources
Zoho CRM Resources
Design. Discuss. Deliver.
Zoho Show Resources
Get Started. Write Away!
Writer is a powerful online word processor, designed for collaborative work.
Zoho CRM コンテンツ
-
オンラインヘルプ
-
Webセミナー
-
機能活用動画
-
よくある質問
-
Ebook
-
-
Zoho Campaigns
- Zoho サービスのWebセミナー
その他のサービス コンテンツ
Nederlandse Hulpbronnen
ご検討中の方
Recent Topics
Contacts with most tickets? Alarm for multiple tickets?
Is it possible to see through the analytics/reports which contacts are creating the most tickets (not the most discussed ones)? Also, is there a way to set up a notification if a contact creates multiple tickets within a certain time frame?Issue with Template Subject Line Format in Zoho CRM
Hi Team, I’ve noticed that when I update the subject line of an email template in Zoho CRM, it sometimes appears in an incorrect format when used. Please see the attached screenshot for reference. Kindly look into this issue and fix this issue from backendTwo Data Labels in Bar Chart
I need to create a bar chart that has both the SUM and COUNT. I've concatenated them into a formula but it converts it into a stacked bar / scattered chart. The bar chart is no longer accessible. Since i'm comparing YOY, it would be best to have it inDisable field on subform row
Hi, Is it currently possible to disable a row item on a subform? I was just trying to do something whereby until another value is entered the field is disable but for the deluge scripting interface threw up an error saying such a function is not supported on a subform. Thanks in advance for your help. ShaheedLeads - Kanban view fit to screen
Hey guys, I created a custom layout for my leads, staged by lead status. I have 10 types of status. In Kanban view I see only 4 columns/stages and need to scroll to the right to see the rest. Is there a way to make columns/stages be displayed all together?Request to Differentiate Auto-Closed WhatsApp Conversations in SalesIQ
Hi Zoho Support, I’d like to raise a request related to the way WhatsApp conversations are auto-closed in SalesIQ. Every Monday, our Sales team has to manually review each closed WhatsApp conversation from the weekend to identify which ones were automaticallyKanban View UI gets a revamp
Hello everyone, In the coming week you will notice design related enhancements in Kanban View. The UI has been changed and a new option is introduced under Kanban View Settings that allows to change the color of the category headers. Please, note that the functionality is not changed. These changes will not apply to the Activities and Visits modules. Here are the details of the changes: 1. The column widths have been fixed to 300 px. The records will have a box around them for clear distinction.Can you stop Custom View Cadences from un-enrolling leads?
I'm testing Cadences for lead nurture. I have set un-enroll properties to trigger on email bounce/unsubscribe, and do NOT have a view criteria un-enroll trigger. However, help documents say that emails are automatically un-enrolled from a Cadence whenIssue with Anchor Link on Zoho Landing Page (Mobile/Tablet View)
Hi Team, I have created a landing page using Zoho Landing Page and added an anchor link to it. The anchor link is working fine on desktop view; however, it does not work properly on mobile or tablet view. I’ve tried debugging this issue in multiple ways,Simplest way to convert XML to a map?
I've reviewed the help info and some great posts on the forum here by Stephen Rhyne (srhyne). At the moment I'm using XPath to generate a list of xml nodes, iterating through that to fetch the field name/value pairs and adding them to a map (one map for each record in the data). I then convert the row map to a string and add it to a list. Here's the function: list xml.getRecordListFromXML(string xml_data, string ele_name) { result = List(); // get list of record nodes rec_list = input.xml_data.toXML().executeXPath("//"Introducing Creator Simplified: An exclusive learning series to enhance your app development skills
Hey Creators! Welcome to Zoho Creator's new learning series, Creator Simplified. In this series, we'll dive into real-world business use cases and explore how to translate your requirements into solutions in your Creator application. You can also expect[Product update] Updated Data Synchronization Process for QuickBooks - Zoho Analytics Integration.
Dear QuickBooks integration users, We’re making an important update in the way data is currently synced in your QuickBooks integration within Analytics workspace. What’s changing: Previously, with every data synchronization, Zoho Analytics used to fetchZoho CRM new calander format cannot strikethrough completed task
Hi, Recently there is a new format for calendar within Zoho CRM However, found out that a completed task will not cross out or strikethrough like previous format. Without strikethrough, it will be difficult to identify which task is still in Open status.How to edit form layout for extension
I am working on extension development. I have created all the fields. I want to rearrange the layout in Sigma platform. But there is no layout module in Sigma. How can I achieve this for extensions other than Zet CLI and putting the fields into widgetEmployees not Users
Hello, We are a construction company that has +180 employees and most of them are in remote location working onsite with no access to internet. Is it possible that we have data stored for all employees but have only 5-10 users who will be in charge of entering employees data? or do we have to pay for all +180 employees? even though they won't be using the system?Zoho people generatimg pdf
Hello , now i want to make a customm button in zoho people that is inside a deduction module , that fetches all the records and generate a pdf with a template that i have done in the mail merges template , i was told that i have to upload template onAbility to Filter Alias Mailboxes in Zoho Recruit
Dear Zoho Recruit Team, I hope you are doing well. We would like to request a feature enhancement regarding the handling of alias mailboxes in Zoho Recruit. Currently, when we connect an alias mailbox (e.g., jobs@domain.com) from our Zoho One accountzohorecruit.com career form postcode bug
Dear, When I select a postcode from the drop down on a zohorecruit.com career form, the street text field is automatically filled with the name of the city, which should not happen. Any idea how I can fix this? Thanks, BartOffice-365-agenda and Microsoft Teams Integration
Dear, I have a trial version of Zoho Recruit and trying to evaluate the Microsoft Teams Integration in Zoho Recruit. After registering with my Office 365 account and checking the result of the registration/sign-in at https://mysignins.microsoft.com/ (whichDelegate Access - Mobile iOS/iPad
We’re over the moon that delegate access is now available in Zoho Mail as we were nearly ready to switch platforms because of it! Is there a timeline on when delegate mailboxes will be accessible from the iOS and iPad OS applications? Thanks, JakeHow to add Connector in developer platform zoho?
Hi, I am working on creating an Extension, and part of the development is to retrieve Email templates. In my CRM instance I can invokeURL by creating Zoho OAuth connection and get the template. But developer platform does not provide Zoho OAuth or anyHow to archive Lost/Junk Leads so sales reps don’t see them, but keep them for reporting?
Hi everyone, In our Zoho CRM we have two Lead Status values: Lost Lead and Junk Lead. What I want to achieve is: When a lead is marked as Lost or Junk, it should disappear from my sales reps’ Lead views (so they only see active leads). At the same time,Zoho CRM Canvas Copy Original Layout
Hello all, I want to use Canvas to make small changes to certain views, not to make huge changes. Is it possible to copy the original Zoho layout and set-up and start from there? I checked and all I can find are some templates which are far from the originalIs there a way to request a password?
We add customers info into the vaults and I wanted to see if we could do some sort of "file request" like how dropbox offers with files. It would be awesome if a customer could go to a link and input a "title, username, password, url" all securely and it then shows up in our team vault or something. Not sure if that is safe, but it's the best I can think of to be semi scalable and obviously better than sending emails. I am open to another idea, just thought this would be a great feature. Thanks,Revenue Management: #5 Revenue Recognition in SaaS
If you're building or running a SaaS business, you've probably encountered this. You get paid upfront for a subscription and a one-time onboarding fee, but you end up with confusion about when to consider it revenue. Can I book all of it now? Should IMS Teams for daily call operations
Hello all, Our most anticipated and crucial update is finally here! Organizations using Microsoft Teams phone system can now integrate it effectively with Zoho CRM for tasks like dialling numbers and logging calls. We are enhancing our MS Teams functionalityZoho Learn Course Access Issue
One of the learners in a specific course can't see any lessons. They are registered as both a user and learner for this course in Zoo Learn. What could be the reason?ZOHOLICS Japan 2025 開催のお知らせ（再投稿）
【コミュニティユーザーの皆さまへお知らせ】 Zoho 最大のユーザーイベント「ZOHOLICS Japan 2025」を9月19日（金）に開催します。 AI活用に関する特別講演、ユーザー事例、Zoho 製品の活用例のご紹介など、Zoholicsならではのセッションをご用意しています。 Zoho コミュニティ開催のMeetupとはまた違った雰囲気のイベントです。 ご都合のつく方はお気軽にご参加ください✨ 詳細はこちら https://events.zoho.jp/zoholics2025#/?affl=forumpost2Phone Number format for Bulk Upload via csv for Zoho Sign
What is the phone number format that we need to use for a bulk recipient upload via csv in zoho sign, should the country code be included for ex if its US should it be +18889007865 ior 18889007865 or without country code 8889007865? the sample csv providedFilter Page Elements By Selectable Date Range
I have created a basic Page that will serve as a client dashboard with elements that will provide simple counts & sums of data in reports. There are no reports or forms added to the page, just elements. It currently functions as needed, but shows theCan’t Enter my Notebook is Locked
I’ve been using Notebook for taking notes at my college for a month and I never signed in and I never established a password. Today I tried to enter the app after the update and it asked me for a password. I need to access to my notes urgently and I can’tSend Email Directly to Channel
Hi, We are coming from Slack. In Slack each channel has a unique Email address that you can send emails too. I currently forward a specific type of email from my Gmail InBox directly do this channel for Verification Codes so my team doesn't have to askSecure your external sharing process with OTP Authentication
For any business, it's crucial to share files externally in a way that is both secure and controlled. Let's say you want to share confidential data with your partners and vendors. You must ensure that only your intended recipients can access the sharedItems attribute questions
Many of my items have attributes, such as size and color. How can I add new fields to the "New Items" screen to capture that in my Purchase Orders, Items, and Sales Order pages? I only see these attribute fields when adding an Item Group. Also, on theIs there a way to search mail for items you haven't yet responded to?
I'm trying to create a search to show emails that haven't been responded to and that have also been assigned a tag or label. Is there a way to search for the inverse of replied?Zobot and Sales IQ
What will happen to the Zoho Sales IQ being integrated to the website after creating the Zobot on the website tooSubtotals per Header
Hey, we would like to display subtotals per header in our invoices:upgrade storage
how to upgrade my storageLinking items from books and subscription
Linking books and subscription It is a pity that it is not possible to associate with a product an article present in ZohoBooks This would make it possible to manage products composed of a nomenclature of articles of booksAdd the ability to view number of hours planned for a workorder while in the Dispatch Console
Hi Zoho, When dispatching a work order through the Dispatch Console, there's currently no way to view the number of planned hours for the service tasks associated with that specific work order. Having to click into the details each time to check plannedNext Page