Airtable Form Editor Settings That Are Easy to Miss

The Airtable form editor settings panel controls more than most people realise. Fields going read-only, character limits, required fields — all of it lives in the same place. Most people only open it when something breaks.

This article covers the three settings most likely to catch you off guard.

Why Form Fields Go Read-Only

Your form was working fine. Then respondents report they cannot click into the fields or type anything. The form looks identical to before, but nothing is editable.

This happens at the field level, not the form level. Each field in an Airtable Interface Form has an individual setting that controls whether respondents can edit it. When this is toggled off, the field appears on the form but is completely unresponsive to input.

It is easy to trigger accidentally. When you duplicate a field, drag fields between sections, or adjust field settings while building the form, the "allow editing" toggle can get switched off without any obvious indication. Because the field still appears in the form, nothing looks wrong until someone tries to fill it out.

How to fix it:

1. Open the form in the Interface editor
2. Click the field that is not responding
3. In the right-hand settings panel, look for the editing toggle
4. Make sure it is turned on

Check every field if multiple fields are affected. Once updated, anyone already on the form page will need to reload to get the fixed version.

Using read-only fields intentionally: Once you know this setting exists, it is useful. A field set to read-only is visible to the respondent but cannot be changed. This works well for showing context at the top of a form — a project name, a reference number, an instruction — without letting the submitter edit it. For more ways to display information without allowing edits, see how to show prefilled read-only fields in Airtable forms.

Setting Character Limits on Text Fields

Still in the form editor, there is a second setting that is easy to overlook: character limits on text fields. This lets you set a minimum and maximum character count on any single-line or long text field.

Character limits are available on paid plans (Team, Business, Enterprise Scale) and are not available on the Free plan.

How to set a character limit:

1. In the form editor, click the text field you want to limit
2. In the right-hand settings panel, scroll to the bottom
3. Find the Character limit option and toggle it on
4. Set a minimum, a maximum, or both

When active, respondents see a live character counter as they type. Submitting is blocked until the field meets the minimum and does not exceed the maximum.

If you are on the Free plan and need character limits, Fillout supports them on its free tier. It connects directly to your Airtable base and writes responses to your existing tables without requiring any changes to your base structure.

Required Fields and the 249-Element Limit

One more setting worth knowing while you are in the editor: each field can be individually marked as required. Respondents cannot submit until all required fields are filled. This is separate from the editing toggle — a field can be required and editable, required and read-only, or neither.

If you are building a longer form, keep in mind that Airtable Interface Forms cap out at 249 elements. Field descriptions, section headers, and helper text all count toward that total, not just the fields themselves. If you are approaching the limit, trimming unnecessary description text is the quickest way to free up space. The full breakdown of what counts and what to do when you hit it is covered in Airtable form limits: max fields, images, and what to do when you hit them.