Remove Field is a WordPress ability from Ninja Forms — usable via Easy MCP AI, which connects Claude, ChatGPT, and any AI assistant to your site.
Install Free Plugin →Remove Field
DestructiveRemove a single field from a form, with a mandatory export-and-confirm workflow when the field has submission data.
Requires the Ninja Forms plugin on WordPress 6.9+ for the Abilities API (all 32 abilities are registered only when the wp_register_ability() function exists, via NF_Abilities_Integration::load_abilities_api() running on plugins_loaded). Every ability is gated by the same ninja_forms_ability_can_manage_forms() permission callback, requiring the caller to hold WordPress's manage_options capability or Ninja Forms' own nf_edit_forms capability.
What it does
This ability removes one field from a form, but only after a multi-step data-protection workflow when the field already has submission data attached: the first call reports how many submissions hold data for that field and refuses to proceed; a follow-up call auto-exports the field's data to CSV and returns a required confirmation phrase; only a third call carrying the exact typed phrase 'DELETE [FIELD_NAME] DATA FROM [COUNT] SUBMISSIONS' actually deletes the field. It processes exactly one field per call — bulk 'remove all unused fields' requests must be worked one field at a time through this full workflow. This protects against an AI assistant silently discarding collected submission data while still letting it clean up a form's fields.
See it in action
You ask your AI assistant
"Remove the old 'Referral Source' field from form 12 — walk me through confirming since it has existing submission data."
Inputs
| Name | Type | Required | Description |
|---|---|---|---|
| form_id | integer | Yes | Form ID containing the field. |
| field_id | integer | Yes | The numeric ID of the field to remove. |
| export_completed | boolean | No | Set to true once the CSV export step has been completed and reviewed. |
| user_confirmation_phrase | string | No | Must exactly match 'DELETE [FIELD_NAME] DATA FROM [COUNT] SUBMISSIONS' to authorize the final deletion. |
Returns
An object with a 'success' boolean, the 'form_id', 'field_id', and a 'message' — which, on the first two calls, instead explains the required next confirmation step.
Permission
The current user must have WordPress's 'manage_options' capability or Ninja Forms' own 'nf_edit_forms' capability (checked via the shared ninja_forms_ability_can_manage_forms() permission callback).
More Ninja Forms abilities
Add Action
Add a post-submission action to a form — email, redirect, success message, or save.
Add Calculation
Add a calculator formula to a form for use in calc fields and conditional logic.
Add Field
Add a single field to an existing form, to be called once per field when building out a form.
Create Form
Create a new Ninja Forms form, optionally with fields, actions, and calculations, in a single call.
Delete Action
Permanently delete an action from a form.
Delete Calculation
Permanently delete a calculation from a form.