Title: Call API using custom field
Last modified: August 22, 2016

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# Call API using custom field

 *  [ankytt](https://wordpress.org/support/users/ankytt/)
 * (@ankytt)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/call-api-using-custom-field/)
 * Hello There,
 * First of all, thanks for creating this beautiful plugin. It has saved me a lot
   of work. Now, i am trying to modify the sign up form via this plugin. I needed
   a mobile number field on my sign up form so i created a custom field via this
   plugin. I have kept it as textbox field and given it database key as rpr_mobile_number.
   Because it is a mobile number, what i need is some kind of validation so that
   user can’t enter more than 10 numbers(not text). How do i do this?
 * Also, I do have SMS API with me so i want to send a welcome text on user’s mobile
   number. Is it possible?
 * Thanks,
    Ankit A.
 * [https://wordpress.org/plugins/register-plus-redux/](https://wordpress.org/plugins/register-plus-redux/)

The topic ‘Call API using custom field’ is closed to new replies.

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## Tags

 * [api](https://wordpress.org/support/topic-tag/api/)
 * [HTTP](https://wordpress.org/support/topic-tag/http/)
 * [modification](https://wordpress.org/support/topic-tag/modification/)
 * [register](https://wordpress.org/support/topic-tag/register/)
 * [signup](https://wordpress.org/support/topic-tag/signup/)
 * [user](https://wordpress.org/support/topic-tag/user/)

 * 0 replies
 * 1 participant
 * Last reply from: [ankytt](https://wordpress.org/support/users/ankytt/)
 * Last activity: [11 years, 7 months ago](https://wordpress.org/support/topic/call-api-using-custom-field/)
 * Status: not resolved