Your form accepts multiple submissions by default. If you want to prevent your responders from making multiple submissions in your form, the Unique Submission will be helpful.
This Unique Submission feature in the form builder has three options:
- No Check — This option means the form will not check for duplicate submissions.
- Check Cookies Only — This option is also called Loose Check. When you choose this option, the form will check whether the submission came from the same browser. It uses cookies stored in the user’s browser’s storage to verify duplicate submissions.
- Check Cookies and IP — This is also called Strict Check, which means the form checks whether the submission came from the same browser and IP Address.
If you select Strict Check, people in the same network (in the same school, college, university, or institution) will not be able to make submissions, as the IP address for the network would be the same. If you consider the target audience as students in the same school, you should choose Loose Check.
Setting up the Unique Submission in the form is very straightforward. Here are the steps:
- In the Form Builder, go to the Settings tab.
- Click the Show More Options button.
- You’ll have to scroll down and find the Unique Submission option.
- Select your preferred option from the dropdown, and that’s it! The form builder automatically saves the changes.
Do you want to set a limit based on an answer from a specific field? That’s possible with the Unique Question feature. For more information, see: How to set Form Limits Based on a Unique Field.
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78 Comments:
We have a monthly nomination form and want to prevent multiple nominations from the same device during the same month, but allow the device to submit one new form every month.
Each new monthly form is being cloned from the previous month and then tweaked (i.e "September" changed to "October" and "closing date for nominations" updated.
If I set UNIQUE SUBMISSION to "Check Cookies Only" will this prevent a device from submitting a form each month i.e. is the same cookie used for each new monthly form or does each new form have a new different cookie?
Also, what are the regulations about cookies in the form? Do I need to advise users on the form that cookies are being used. Is the cookie loaded as soon as the form is downloaded or when it is sent?
I would appreciate your help and advice. Thanks
Is it possible to set a limit of 2 or 3 submissions per person?
Thank you!
is there a way to avoid duplicate submissions based on an email that was entered into the form? we're using jotform for RSVP and send out emails as well as SMS. some users might fill out the form based on a link they received via SMS and then some time later fill out the form again based on a link received via email. so the IP address/cookie solution might not work since they are submitting on different devices/locations
It helped for second, now the spammer is changing the IP, and this is affecting my other customers that need to submit payments many times a day. Please help block the spammer.
Is there a reset time period for the Unique Submission check? Will it reset after 24 hours or once a form has been completed and submitted the same person can never again submit using that form?
Hola, es casi caso parecido a lo que me sucede pero en mi caso tengo un cliente que necesita devolver varios contenedores, lo que no quiero es que me haga varios envíos para el mismo contenedor
this was very helpful thanks
Hi: I´m trying to send an information on a jot form, but it´s been imposible to do it, maybe it is because I´m doing this using the same Ip Address, I do not know. Can you help me to solve this problem. After clicking to send the jot form, the system prompts me this notice: "Sorry! only one entry is allowed.
Looking forward to hearing from you,
Aquilio
Hello I have the Unique Submission on Cookies and IP enabled. I did test entries and worked-out fine. When I finally deployed the form with clean submission (I deleted the test data), I still received the duplicate submission notice. I clear cookies and cache histories, but to no avail.
Can we send Jotform Responses to different Google sheets.
Hi After using your form for a while now if find it the best form building and user friendly form out there. I have one request to prevent users submitting twice. Is it possible to only let users submit once from a list. On my form I have 42 option to choses from after one of the options is used can it stop this option from being used again?
Regards Peter
Hello,
I'm getting this Sorry! Only one entry is allowed and I would like to increase the number to say 2, cant you tell how I can do that.
David
Can I reset the time for when a user can submit a second form? Or is it permanent?
Good morning
I have cleared the databases on my form - EACCI November Biz-Link Connect Event. However, when I register as a test and as a participant it gives me this error message "Sorry! Only one entry is allowed".
This has also occurred with two of my regular attendees.
From the above information on this page, this is my request "No Check (default) - duplicate submissions will not be checked in this state."
Please advise how to fix this.
Many thanks
Heather Smithard
Hi,
I received your answer but I am not clear on the drop down menu I don't have the option to select (Loose Check) or (Strict Check). The three options are No Check, Check Cookies only, and Check Cookies and IP. I just want to restrict multiple submissions to the same event. The answer you gave me is not clear. Please advise!
Thanks for your help
Hi there! I would like to allow duplicate submissions from the same cookie and IP. I changed the settings and the form is not allowing another entry.
This is their problem: filled out the form and submitted. I got no Thank You Page. So I submitted again. This time I got an error message about registering twice
The customer may need to submit an other submission. What with check stop them from doing that?
Hello,
I've been encountering an issue where some forms are being sent in duplicate. Usually the duplicates are sent hours or even days after the original was submitted. In some cases multiple duplicates (up to 4) have been received. We've contacted some of the customers who we received duplicates from and in all cases they claim they have not initiated the duplicate form. Any idea what this is caused by? Would you recommend adjusting unique submissions settings? Would doing so prevent carbon copies from coming in or would it target all future submissions by the customer? Thanks!
my name is big letter my number is correct try again this matter is next no any problems I promise me no mistake this is correct at sab you thank you so much
We want to have a poll, where (i) only specific users can vote, (ii) only once, (iii) without been able to forward the vote to another PC/IP address, and (iv) without admin been able to track responses to users but only get the results of the poll. How can this happen?
I made a form for a friend and I would like to know if it is possible to export this form to my friend's account. It is possible?
Thank you. I tried both cookies only and cookies with IP. It works, but I cannot access the linked website attached to the form after this. Is there any way that after I accomplished the form. and everytime i visite the linked website the form will not load again?
Dear Sir ,
I want to use QR reader as one of data collection field . The QR codes are provided to some people ( Common Man ) . All of them have been told to maintain a "Q" . The mobile form with JOTFORM app is scanning the QR codes of the people , to whom the items are being distributed . I want to check to stop the repeated entry of any person during a particular interval of time . Please help me to include this condition in my form creation.
Thanks
Manoj K Jain
about Unique Submission
I have been testing the IP option, and it does not let me send more than once, it is perfect, but the cookies option that it specifically does .. I tell you, I have an order form, where I send them to my clients they fill every time What they want, I want to avoid in some way, that my clients do not forward the link to friends of theirs and they send me a request (without knowing who they are), with cookies this is avoided, or there is another way. Limit if someone who has my link, and forwards it to someone else, this will not work unless I send it to them .. let me know if it can.
Thank you guys for the quick response. I don't think this answers my question or maybe there's more of this I need understanding on.
Here's what I am looking to accomplish...my website is a membership site however I currently don't have an option that allows members to be identified by way of a user name. For example on your site my user name is "mrpjb2u" and because I've created that user name no other user can create it. Also, when an identifier is necessary on the front end of your site, my user name (mrpjb2u) is displayed and not my full information. On the back-end the user name gives you a quick way to identify me and my full information.
This is what I'm looking to hopefully achieve on my site. Can you help?
Is there a way that I can change the message that is shown?
Sorry! Only one entry is allowed.
Thanks
I think I already found the answer below in the old replies (2013 - 2017) that this is not possible... or has it been added in the meantime? It would really be a big plus for Jotform if you would offer this feature.
Can I also set unique submissions with a time limit? So let's say I have a voting form for 2 weeks and I want to allow a user to vote once per 24 hours, is that possible too?
thank you much appreciated
found this very helpful ... however took forever to figure out the proper wording of my question. "How to change the number of form submissions allowed" should be searchable terms, IMO.
very helpful
Thank you.
How can I change the message that appears for unique submissions.
EXCELENTE....
Gracias..!!!!!1
Is it possible to only allow one submission per email address?
If I set the Unique Suhbmission to No check, will the CAPTCHA feature still work to protect my form?
Yes, this worked but my form is used monthly. Is there a way to reset (delete the cookies) upon deleting each months submissions? So attendees can still sign up next month without being blocked. I tested this and when I deleted my submission and tried to sign up again I still was blocked.
Getting it to clear cookies or reset on deletion would be a great help.
We all have choices of what survey format or company we choose to use. Because of your incredible support network, we will always be loyal to Jotform. Thank you so much
Can you tell me what message comes up when they do submit a duplicate submission under "cookies only"? What happens?
I am using my form for my online store website. What if i choose the "Check Cookies Only". Is this also a lifetime limit? I want to block the spammers but i also want my clients to purchase again using the same Purchase order form.
Is it possible to direct the user to a "Sign Up" link when they get this error?
can i limit the number of subcriptions on every choice of single choice type questions
works
أرغب في انشاء نموذج لا يقبل التعبئة بنفس رقم الهوية أكثر من مرة واحدة
recibo formularios duplicados al parecer los formulario se repiten cuando el usuario vuelve atras en su navegador.
Hay forma de evitar esto?
Ya intentamos agregar un captcha pero el problema continua.
When using "loose check" is the cookie being used a "Session Cookie" (cleared when the browser is closed and reopened) or "Persistent Cookie"? If it's Persistent does it expire? When?
This is great, I have set up the subscription form on my website. I've made a test payment and it works, but is there any way to confirm that the subscription is working and that I will be charged again in a month?
Is there a way for people to submit updates to the information they've already submitted? Lets say today my cell phone number is 555-5555 but next week it changes. Can I go in and check a box or something that says "Update my previous information" or something?
Good afternoon.
I have created a form.
For some reason if I follow your answer as shown above. Under the preference button I have a "Form Limits" tab(This might be a new version from the one shown above). Under this tab the "Unique Submission" option is there but as I click on it to change it, it doesn't let me. Why is this?
Please Help!!
Currently, I have Stripe setup where I can invoke "Alipay" for clients in China. Can this be easily implemented in Jotform?
I want to reset it everyday . i want it to be done automatically?????
This is great, BUT if you could trigger the email program to run when the next page button is pressed, then you could put in a box for the user to tick if they want the email, and set a conditional email to send when they press next, IF they tick that box. Better yet, if an email could send the moment they tick the box/ press a button that would be fantastic!
My only other problem is that this assumes they're being sent direct Jotform links, many of your clients, myself included, embed your forms into their own websites and don't want the user to know they're using Jotform - this wouldn't work as it only works with a jotform link!
Will they be able to come back the next day and submit the forma again? Or does it block them forever on strict?
I'm a consultant and want to create forms to send to different users who can save their answers and return to see what they have answered from time to time as a saved formed unique to them so they can refer to it as an ongoing plan that gets adjusted as they go in time?
Is there a way to change this message to a custom one?
A previous form that I used had a strict check on any one of the fields of the form, does the loose check do this ? I have asked one of our users who has two email addresses to try a submission with the strict check and it of course blocks his submission from their other address, but when I set it to loose check they can send duplicate submission. Can you suggest that the strict check only checks for a specified duplicated field for example email address.
Willy Scott
Is there a way to customize the notification that multiple submissions are not allowed?
Can you give these guys an answer instead of ignoring this please
Thanks
I have the same requirement as yoyou12121 and bhanu. I want to limit submissions to approx 10 in a calendar month from one IP address.
Hello Jotform Team,
I have a same query as (yoyo12121). I have a similar requirement. Please help.
Thanks
Bhanu
i have a blog and im setting up a form where people can send me pictures that i might want to put on my blog, is there a way that i can restrict it so that the same person can only send one picture per day?
What would be good is to have a unique submission method where a one time code is required for submission, and that code is barred from usage once used.
Example.
Form to be used by 3 users, in which the 3 codes were give:
CodE01
COde02
CoDE03
For the users to submit the form, at the end, they will need to enter their respective code, ie. COde02. Once entered, the database will take note of it, and when attempted to enter again with that same code, it will not be allowed.
Sounds wonderful. Wish we could use this. Could you remember your many happy international users and point out that this service is only available in the US and Canada?
Hi can you combine, recurring and one time payment using a jotform stripe integration, or would I have to create 2 forms, one for recurring and one for a one time payment?
Very nice! I have put it on a few forms to try it out.
wwo0o0ow
thats perfect!!
is it work in another countries by someElse banking services??
can you exchange money for another money units?
Very interesting!!!
I can't seem to change the currency to Canadian....will this be remedied soon?
How do you incorporate the coupons into the form?
FINALLY! I REQUESTED THIS SO LONG AGO!!! YAY!!!!
I'm definitely going to look into Stripe... but not immediately clear how this is better than Paypal Pro. Your already-very-good Paypal form lets me handle all the card details on a single form embedded into my site.
Trust me, I'm no fan of Paypal, they've jerked me around as much as any other vendor/consultant who tries to use their services. I'm just saying the benefits of Stripe v. Paypal are not immediately clear here.
ssl might not be required but no ssl dosnt look secure.. if i think as a customer ill think twice before entering my card details...
This is great! Does our site need SSL to function with Stripe? Or will using a HTTPS form suffice?
wow!!! I want to try now!!!! Thank you!!
Thanks. We permit different content from same person or email. But we like to prevent same title only. Does this cookie control or check the paper title only.
It seems that if you choose a strict check, a form can only be submitted once from a particular IP address. With this decision, you are essentially blocking the IP address from submitting more than one form. So a person who wants to make fake submissions can only make 1 fake submission from a particular IP address. Then, they would have to use a proxy server or log in from another IP address.
So it's impossible to stop a particular person from making multiple submissions.
What would also be helpful would be 1. a way of identifying the MAC address and allowing only one submission per MAC, so that the user would have even more trouble making multiple submissions.
2. a way of preventing a person with a certain ID from submitting a particular form more than once.
I am currently using your program for my reservation system and I keep having this one person sending "fake" emails. Is there a way to block out a specific IP address? please let me know.
i have a client that needs to have a private login area for their website how do i use the username and password box to allow his clients to login to a separate part of his website and how do i set the page link to go to that part of the site