As of April 2026, UniqueID for Contact Form 7 is a WordPress unique id plugin with 2.0K+ active installations and a 2.7/5 rating from 10 reviews. It has been downloaded 20K+ times in total. Requires WordPress 4.0.0+ and PHP 5.2.4+. Available on WordPress.org since 2019. Last updated 5 years ago — may have compatibility concerns. Download volume is stable this week. Top alternative: Date Filters, Date Picker & Unique IDs….
2.7/510 reviews
2.0K+active installs
20K+total downloads
7 yearssince 2019
Overview
Plugin for Contact Form 7: adds a field for an unique submission id.
You can choose to include a hidden or an visible field to your form.
This field will be automatically filled with an number which is incremented on every submission.
Usage
Just add the field to your form.
You can filter the value using the cf7_submission_id_filter.
To add leading zeros for example, just put the code below in your functions.php
add_filter('cf7_submission_id_filter', 'custom_cf7_submission_id_filter');
function custom_cf7_submission_id_filter($val){
return sprintf("%04d", $val);
}
Screenshots
Ratings & Reviews
2.710 reviews
5 ★
3
4 ★
1
3 ★
1
2 ★
0
1 ★
5
Recent Reviews
Work’s fine….
by Shane Muirhead·4 years ago
This plugin work’s fine, be sure to be submitting the form without /#wpcf7-f650-p652-o1 appended to the URL since this will not be classed as a new form submission and won’t increment the submission ID.
i.e the same person is not going to fill out the form twice if they do the ID’s will be the same.
I’ve installed and tested this and it works fine as long as you properly start a new form submission after the first submit…
- This topic was modified 4 years, 2 months ago by Shane Muirhead.
Doesn’t work
by zakgreene·4 years ago
Using the “starting number” feature, I submitted several forms and the number never incremented. As many others have said, it simply didn’t work. Don’t use.
Does not increment.
by sumsarisum·4 years ago
Plugin simply didn’t work. Counter did not increment. Don’t bother.
Not working
by kuwjr·5 years ago
this plugin doesnt work properly
Can’t make it work :/
by ms.yna·5 years ago·1 reply
Unique ID doesn’t work/increment. Every time I submit a form, it keeps displaying the same submission ID Starting number.
Download Trends
Today: 4Yesterday: 3This week: 35Period total: 1K
Compatibility
| WordPress | 4.0.0+ requiredTested up to 5.7.0 |
| PHP | 5.2.4+ required |
Version Adoption
v2.4
92.1%
v2.3
5.2%
Other
2.7%
Top Alternatives to UniqueID for Contact Form 7
Frequently Asked Questions
Changelog
2.4.0
- Not dependent on jQuery anymore
- Only increments on success
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.