Title: Input Mask Format characters optional ?
Last modified: May 11, 2020

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# Input Mask Format characters optional ?

 *  Resolved [thim00](https://wordpress.org/support/users/thim00/)
 * (@thim00)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/input-mask-format-characters-optional/)
 * Hi guys,
    I try to put an Input Mask Format for my “N° d’immatriculation” field.
   My wish is to set this format : “aa-9?99999” so I can enter all this possibility:
   NE-3 NE-53 NE-553 NE-5553 NE-55553 NE-555553 The problem is that I can only validate:
   NE-3 and NE-555553, so I also tried “aa-9?9?9?9?9?9” but it dosen’t work better.
   What should I do ?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Finput-mask-format-characters-optional%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Support [Njones35](https://wordpress.org/support/users/njones35/)
 * (@njones35)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/input-mask-format-characters-optional/#post-12814851)
 * Hi there,
 * Since this is a feature of our Premium plugin, could you please open a ticket
   with this question in our helpdesk: [https://formidableforms.com/new-topic/](https://formidableforms.com/new-topic/)
 * Thank you
 *  Thread Starter [thim00](https://wordpress.org/support/users/thim00/)
 * (@thim00)
 * [6 years, 1 month ago](https://wordpress.org/support/topic/input-mask-format-characters-optional/#post-12814870)
 * It’s done. Thanks

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Input Mask Format characters optional ?’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [thim00](https://wordpress.org/support/users/thim00/)
 * Last activity: [6 years, 1 month ago](https://wordpress.org/support/topic/input-mask-format-characters-optional/#post-12814870)
 * Status: resolved