Title: Unique ID
Last modified: August 11, 2026

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# Unique ID

 *  [tinkat](https://wordpress.org/support/users/tinkat/)
 * (@tinkat)
 * [4 weeks ago](https://wordpress.org/support/topic/unique-id-5/)
 *     ```wp-block-code
       Hi,I’m using Booking Package version 1.7.22.I have a problem with two fields having the same Unique ID.The built-in Guests field has the ID <span style="font-family: inherit; font-size: 0.8rem; text-align: initial;">guest</span>. I also created a custom field using Add input field, and unfortunately it also has the ID <span style="font-family: inherit; font-size: 0.8rem; text-align: initial;">guest</span>.In the notification settings, both fields therefore appear with the same shortcode:[guests]For example, the shortcode list shows:[guests] → “Guests”[guests] → “Vendégek / Guests”I cannot edit the Unique ID of my custom field in the admin interface.I need the two fields to have different IDs/shortcodes so that I can display the value of my custom field separately in the notification email.Is there a way to change the Unique ID of the custom input field, or otherwise distinguish the two [guests] fields?Thank you!
       ```
   
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Funique-id-5%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [MASAAKI TANAKA](https://wordpress.org/support/users/masaakitanaka/)
 * (@masaakitanaka)
 * [4 weeks ago](https://wordpress.org/support/topic/unique-id-5/#post-18990545)
 * Hello,
 * Thank you for reaching out and using Booking Package.
 * Please note that once a Unique ID for an input field is created and registered,
   it cannot be modified or edited from the admin interface.
 * To resolve this issue, please follow the steps below:
    1. **Delete** the custom input field that currently uses the duplicate `guest` 
       Unique ID.
    2. **Add a new input field** and enter a different, unique ID for it.
 * Once you recreate the field with a new Unique ID, a separate shortcode will be
   generated for it, allowing you to display its value individually in your notification
   emails.
 * Please let us know if you have any further questions.
 * Best regards,

Viewing 1 replies (of 1 total)

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 * 1 reply
 * 2 participants
 * Last reply from: [MASAAKI TANAKA](https://wordpress.org/support/users/masaakitanaka/)
 * Last activity: [4 weeks ago](https://wordpress.org/support/topic/unique-id-5/#post-18990545)
 * Status: not resolved