Captcha protects your help center from fraud and abuse without creating friction.

What is a CAPTCHA?
CAPTCHA is a test used in computing to verify that a user is human by requiring them to complete a challenge. It helps prevent bot attacks and reduce spam.
In a help center, this is implemented as a security feature. It is usually a distorted image with text or a brief audio sample that users are required to decipher and type in to prove they are human and not an automated bot. This feature is often used on forms like logins or ticket submissions within the help center to prevent spam or malicious activity.
Why does your Help Center need CAPTCHA?
If users are being prompted for CAPTCHA while using your help center, it could be due to any of the following reasons:
Bot prevention: CAPTCHA is often implemented to prevent automated bots from spamming or misusing the platform. If unusual traffic from a particular IP or user actions seems automated, the system might trigger a CAPTCHA challenge.

C - Completely
A - Automated
P - Public
T - Turing test (to tell)
C - Computers (and)
H - Humans
A - Apart
Types of CAPTCHA in the Help Center
1. Audio CAPTCHA
An audio CAPTCHA in a help center is an accessibility-focused verification tool designed to assist users with difficulty reading visual CAPTCHAs.
This type of CAPTCHA can be beneficial for visually impaired users or those with reading difficulties to help ensure that the help center remains accessible to all. Requiring users to listen to the audio and type what they hear helps prevent automated bots from submitting forms while providing a more inclusive experience for real users.
For example, the audio will ask a simple math problem, "What is 2+3?" the user must type the answer.

2. Image CAPTCHA
An image CAPTCHA in a help center is a visual verification tool designed to determine whether a user is a human or an automated bot. Typically, it presents users with an image containing distorted objects they need to identify or transcribe as part of a challenge-response test. This method effectively prevents spam and automated submissions, as bots often struggle to interpret images in the same way humans can.

Help Center CAPTCHA Enhancements
To reduce the frequency of CAPTCHA prompts, consider reviewing your security settings, monitoring user activity, and ensuring that your help center is user-friendly and accessible.
Administrators can allow unregistered users to submit tickets by disabling the preference setting Customers must sign in to your Help Center to submit Tickets in the Help Center Access Settings.
Enabling this preference is highly recommended as it will help prevent bots from creating spam tickets.
We noticed that unregistered users created spam tickets via the Help Center's Add Ticket form. To stop the spamming, we have facilitated the preference Show captcha for unregistered users in the add Tickets form in your portal.
We will enable this setting with the latest enhancements for all your portals. You can still turn off the preference in the Help Center Access Settings. We recommend enabling it to avoid ticket spamming.
You can still disable these preferences in the Help Center Access Settings. To set the CAPTCHA permissions
- Go to Setup > Channels > Help Center.
- Select the Help Center for which you want to set access permissions.
- Click Access Settings under the Help Center sub-menu.

4. On the Access Settings page, enable Show captcha for unregistered users in the add Tickets form option under Permissions.
5. Alternatively, you can enable Customers to sign in to your Help Center to submit the Tickets option.

Enabling this option will direct your customers to the login page, where they must sign in or register to access your Help Center.
Enabling this option provides an open Help Center; however, customers must sign in to submit their tickets. 6. The changes will be saved instantly.
Takeaway
Implementing image and audio CAPTCHAs helps maintain the integrity of the help center by reducing the likelihood of spam tickets and ensuring that your agents can prioritize genuine user inquiries.
Please stay tuned for new updates in Help Center.
Cheers,
Kavya Rao
The Zoho Desk Team
Recent Topics
Integrating Chatbot with Zoho Creator Application
Is it possible to integrate a chatbot with a Zoho Creator application?
How to reduce programmatically the image uploaded by user?
I need a function that will automatically reduce the pixel dimension to 800 x 600 pixels / 180 resolution or (approx. 1.37MB) of image uploaded by user from digital camera, for example, 2271 x 1704 pixels /180 resolution or approx. 11.1MB. After the user selected the image, the function will able to detect if pixels is above 800x600, process the photo (crop/ reduce) and resume upload. Need help...
Dark mode for Zoho Creator / Zoho CRM Code editor
Hi Team, Is there any plans for Dark mode in Zoho creator / Zoho Crm code editor and development pages in pipeline?
Is there a way to make a button scroll down?
Looking to have a button on a landing page scroll down to another section on the page. Any recomendations outside of coding?
Collective-booking event not added to all staff calendars
We assign two staff to certain events. When the client books this event, it adds it to one staff calendar (the 'organiser') but not the other. How can I ensure all staff assigned to a collective booking get the event in their calendar? (A side note: it
ZOHO Android Client
Hi, I installed the Android app, but it had an issue, so I reinstalled it. I was able to add multiple accounts, but now when I add the next account, it just duplicates the one I already have and will not even allow me to enter the info for another account.
I'd like to suggest a feature enhancement for SalesIQ that would greatly improve the user experience across different channels.
Hello Zoho Team, Current Limitation: When I enable the pre-chat form under Brands > Flow Controls to collect the visitor’s name and email, it gets applied globally across all channels, including WhatsApp, Messenger, and Instagram. This doesn't quite align
Enhance Barcode/QR Code scanner with bulk scanning or continuously scanning
Dear Zoho Creator, As we all know, after each scan, the scanning frame closes. Imagine having 100 items; we would need to tap 100 times and wait roughly 1 second each time for the scanning frame to reopen on mobile web. It's not just about wasting time;
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
Managing Rental Sales in Zoho Inventory
I am aware that Zoho Inventory is not yet set up to handle rental sales and invoicing. Is anyone using it for rentals anyway? I'd like to hear about how others have found work arounds to manage inventory of rental equipment, rental payments, etc. Th
Megamenu
Finally! Megamenu's are now available in Zoho-Sites, after waiting for it and requesting it for years! BUT ... why am I asked to upgrade in order to use a megamenu? First: Zoho promised to always provide premium versions and options for all included Zoho-applications
Zoho Flow to Creator 3001 Respoonse
I have updated my Flows with the new V2 connection to Zoho Creator, but now some Flows do not work. They take in data from a Webhook and are supposed to create a record in Creator, however creator returns a 3001 message along with a failure, but I cannot
File Upload to Work Drive While Adding Records in Zoho Creator Application
Hi I am trying to set a file attachment field in zoho creator form, to enable the user to upload a scanned document from their local pc. The file should be uploaded to zoho workdrive and not to the default zoho creator storage. The file link should be
Why not possible to generate?
Using this https://desk.zoho.com/DeskAPIDocument#TicketCount#TicketCount_Getticketcountbyfield on my ZML script url :"https://desk.zoho.com/api/v1/ticketsCountByFieldValues?departmentId=XXXXXXXXXXX&accountId!=XXXXXXXXX&customField1=cf_country_1:XXXXXX&field=overDue"
email
Hi My crm email is not working, can you check, I have zoho one account.
Need option to see Mass Emails & Cadences in Gmail Outbox OR a dedicated Zoho Outbox
Hi everyone, Right now, when we send 1:1 emails from gmail (with gmail API connected to Zoho CRM), those emails appear both in gmail's sent folder and in Zoho CRM. That works well. But when we send Mass Emails or Cadence emails form Zoho CRM, they are
I can't found API for Sales Receipts
Hello May you please help me to find an API document for Sales Receipts to get data and retrive a custom fields like Invoice and credit notes Regards
Kaizen #205 - Answering Your Questions | Managing Picklists and Enabling History Tracking via Zoho CRM APIs
Hello everyone! Welcome back to another post in our Kaizen series. In this post, we will look at how you can manage picklist fields in Zoho CRM using APIs. This topic was raised as feedback to Kaizen #200, so we are taking it up here with more details.
Multiple Vendor SKUs
One of the big concerns we have with ZOHO Inventory is lack of Vendor Skus like many other inventory software packages offer. Being able to have multiple vendor skus for the same product would be HUGE! It would populate the appropriate vendor Sku for
Internally created tickets
Hi there When tickets are created internally on-behalf of customers - there is nothing to show that the ticket was created by an internal agent. This means, that it's easy for our agents to confuse tickets which were created by internal team members and
Automatically change website passwords
Hi everyone, We just switched to a Professional package to also use the "Automatically change website passwords" function. But I cannot find anything about it, how to use it, anywhere. Does anyone know how I can use this function? Best, Caspar
Change Invoice Prices for an Effective Date
Hi, It would be a really good feature to be able to change the prices on invoices/recurring invoices from an effective date in the event of price increases. For instance, I am in the process of increasing prices that will be effective from a specific
"Other Current Asset" accounts as "Paid Through" accounts in Expense
It would be incredibly useful to be able to assign accounts of type Other Current Asset as Paid Through accounts in Expense. Currently, Other Current Liability are permitted as Paid Through Accounts. This makes sense, as Credit Cards are current liabilities.
Multi column open text questions that allows respondents to add rows for additional information
I need to create a question that has 2 columns with open text, but I also need to allow respondents to click a "+" button, or something similar, so that they can add additional information if they choose to. I've tried using the Multiple Textboxes type
Bot Filtering & Apple Mail Privacy Protection Compliance in Zoho Campaigns
Dear Campaigns Users, The wait is over! We’re excited to announce that the enhanced bot filtering feature is now live in Zoho Campaigns. This update brings greater accuracy to your email campaign reports by distinguishing real user engagement from automated
Découvrons les détails qui simplifient vos journées de travail avec Trident
Nous nous installons dans des routines efficaces et rodées avec le temps. Chaque matin, nous ouvrons nos e-mails, passons aux messages, consultons notre agenda, puis attaquons nos tâches. Ce processus nous semble maîtrisé, mais est-il réellement optimisé
Issue with Purchase Rate Showing as “0” After Importing Items List
Dear Zoho Books Support Team, Good day. I’m reaching out regarding an issue I’m facing while importing my items list into Zoho Books. Despite mapping all fields correctly and including the purchase price for each product in my Excel file, the Purchase
API for Task Entity in Zoho Books
I’m working on automating task creation in Zoho Books via a custom button in the Bills Module. The goal is to create a task in the Tasks Module and assign it to the Finance Team, so they can track progress efficiently. While reviewing Zoho Books documentation,
create invoice in zoho books from the zoho forms
Is there a native way to have create invoice in zoho books, when zoho form is completed?
Email undelivered
GOod Day I am always receiving an uncategorized-bounce to my email. I am not sure why this is happening.
Add inventory_valuation_method to items endpooints
To ensure consistent item creation it would be helpful to have the inventory_valuation_method (FIFO vs WAC) be able to be set at item creation or as an update (consistent with current behavior where it is not allowed for items with existing transactions)
Use Zoho to send sales receipts for Gocardless transactions
I've been using gocardless for years and have d/d mandates set up on there. Each week we get bulk payments from customer d/d's. However, we need to send sales receipts to these customers. So I know I can sync mandates into Zoho, and then I can set up
Zoho - Gocardless sales receipts
I've been using gocardless for years and have d/d mandates set up on there. Each week we get bulk payments from customer d/d's. However, we need to send sales receipts to these customers. So I know I can sync mandates into Zoho, and then I can set up
Introducing Rollup summary in Zoho CRM
------------------------------------------Moderated on 5th July'23---------------------------------------------- Rollup summary is now available for all organizations in all the DCs. Hello All, We hope you're well! We're here with an exciting update that
Introducing Connected Workflows in Zoho CRM for Everyone : Free Your Teams to Focus on What Matters
Hello Everyone, We’re thrilled to introduce the next big evolution in Zoho CRM for Everyone -- Connected Workflows. This new feature builds on our commitment to deliver a CRM that’s truly inclusive, adaptable, and designed for consistent collaboration
Cooling-off Period Just Got Better: More Coverage, More Control
We’ve enhanced the Cooling-off Period feature in Zoho Recruit to give you more control over repeat applications and referrals. This helps you maintain a cleaner, more efficient recruitment pipeline. With this enhancement, you can: Prevent duplicate candidate
Revenue Management: #7 Revenue Recongition in Construction & Real Estate Industry
If you are in the construction or real estate business, you are used to long project timelines and progressive invoicing to keep up with your billing. But when does revenue get recognized? Will it happen when the contract gets signed? At different milestones
TikTok (and other social platform) Messages and comments of the past
When I link a social channel, Zoho will show in "Inbox", "Messages" and "Contact" sections the interaction done in the past? (comment, messages...)
Email Integration - Zoho CRM - OAuth and IMAP
Hello, We are attempting to integrate our Microsoft 365 email with Zoho CRM. We are using the documentation at Email Configuration for IMAP and POP3 (zoho.com) We use Microsoft 365 and per their recommendations (and requirements) for secure email we have
Restrict Employee mail deletion
Dear Zoho, Is there a way where i can restrict my employees to delete any mails from their account
Next Page