# Email prompt

> Write and test the AI prompts that personalize every email in an AI email blast.

- Section: Using the app (manual) › AI agent
- Web page: https://docs.biglysales.com/manual/email-prompt
- Video: placeholder — "Writing an AI email prompt" (not yet recorded)

With an **AI email blast**, Bigly writes a personal subject and body for every contact instead of sending the same template to everyone. The **Email Prompt** tab is where you write the instructions the AI follows and test them on real contacts before you send anything.

## Before you start

- Have at least one contact with useful details, such as name, company and title, so you can test against it.
- Set up your [email signature](https://docs.biglysales.com/manual/email-signature.md). It's added to AI emails when they're sent.

## Open a prompt

1. Go to **AI › Email Prompt**.
2. Click one of your saved prompts to open it.

> [Screenshot placeholder: Saved email prompts — AI › Email Prompt showing a grid of saved prompt cards, each with its prompt name.]

## Test a prompt on a contact

1. Choose **B2C** (selling to consumers) or **B2B** (selling to businesses).
2. In **Search Contacts**, start typing a contact's name and pick them. The **Payload** box fills in with that contact's details.
3. Edit the **Pre Prompt**: the main instructions, such as who you are, what you offer, and the tone to use.
4. Edit the **Rules**: the do's and don'ts, such as length limits or words to avoid.
5. Click **Submit**. After a moment, a sample email appears under **Results**, with a **Subject** and **Body**. Nothing is sent to the contact.
6. Adjust the Pre Prompt or Rules and click **Submit** again until you're happy.

> [Screenshot placeholder: Testing an email prompt — The Email Prompt editor with B2B selected, a contact chosen in Search Contacts, the Pre Prompt, Payload and Rules boxes on the left, and a generated Subject and Body under Results on the right.]

## Save the prompt

1. Click **Save Prompt**.
2. Type a **Name**.
3. To keep the original and save your changes as a separate prompt, tick **Save as a new template**.
4. Click **Save**.

## Use the prompt in an email blast

When you create an email blast, choose the **AI Email** template. On the next step, **Select Prompt** shows your saved prompts. Click the one you want, then finish the blast as usual. See [Scheduled blasts](https://docs.biglysales.com/manual/scheduled-blasts.md).

## Settings explained

| Field | What it's for |
|---|---|
| **B2C / B2B** | The kind of audience. It changes the contact details loaded into the payload. |
| **Pre Prompt** | Your main instructions to the AI. |
| **Payload** | The contact's details the AI writes from. It's filled in when you pick a contact. You don't need to type it. |
| **Rules** | Extra rules the AI must follow. |
| **Results** | The sample email the AI wrote for this contact. |

## Common questions

**It says "Please fill the payload".** Pick a contact in **Search Contacts** first.

**Does Submit send an email?** No. It only shows you a preview.

**How do I know the emails will read well?** Each contact's email is written by the AI when the blast sends, so test your prompt on a few different contacts first.

## Related

- [Email signature](https://docs.biglysales.com/manual/email-signature.md)
- [Scheduled blasts](https://docs.biglysales.com/manual/scheduled-blasts.md)
- [Contacts](https://docs.biglysales.com/manual/contacts.md)

---

All documentation pages: https://docs.biglysales.com/llms.txt