# Extra Fields for Content
## How to set extra fields for webinar/content subscriptions
In cases where you would like to ask attendees additional questions before they subscribe to a piece of content, either an event or document, you will need to fill out the 'Capture additional data' field. \
\
In events, this can be found under *Audience* > *Capture additional data*
Where to add extra fields in events
In other types of content, i.e. articles and documents, this can be found under *Extra Fields.*
Where to add extra fields in other types of content, i.e. articles, documents, etc.
IMPORTANT: Replace {contentId} with the content ID, e.g. textbox|not\_required|question\_1234|Pose a question:
### Text Fields
```
# Phone number (Required)
textbox|required|business_phone|Business Phone
```
```
# Phone number (Optional)
textbox|not_required|business_phone|Business Phone
```
### Textarea Fields
```
# Pose a question field (Optional)
textbox|not_required|question_{contentId}|Pose a question:
```
### Dropdown Fields
```
# How did you hear about this webinar (Optional)
dropdown|not_required|how_did_you_hear_about_this_webinar_{contentID}|
How did you hear about this webinar?|Colleague,Email,Network,Search Engine,Other
```
```
# Industry field (Required)
dropdown|required|industry|Industry|Academic,Air,Associations,Charity,
Chemicals,Engineering,Environment,Financial Services
```
### Radio Buttons
```
# Yes/No radio button (Required)
radio|required|healthcare_professional_{contentId}|I can confirm that I am a
healthcare professional|Yes,No
```
### Checkboxes
```
# Checkbox field (Optional)
checkbox|not_required|email_updates_other_{contentId}|Following the
event, I would like to receive e-mail updates.
```
```
# Checkbox field (Required)
checkbox|required|terms_{contentId}|I acknowledge that I have read and fully
understand this consent
```
### Paragraphs
Use this to include a paragraph within the form. This is useful for adding text that doesn't require user input, either to futher explain questions or to provide extra information to the user on sign up.
```
paragraph|From time to time, we would like to send you information
relating to topics in this event, please tick the box below to recieve
these emails.
```
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.wavecast.io/publishing/control-access/extra-fields-for-content.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.