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# Invite a business to trade with you on to.co

Last checked 2026-11-12

To trade on to.co, the other business needs to be your trading partner. Invite it by email. When it accepts, you are partners on both sides. Nothing is shared with it until then.

Owners and Finance members send invitations, signed in to my.to.co.

## Send an invitation

1. In my.to.co, open **Trading partners** and choose **Invite a business**.
2. Fill in:
   - **Business name**, as you know them. When they accept, their registered name replaces it.
   - **Email address**, where the invitation goes. We keep a fingerprint of the address, not the address itself.
   - **They are your**: customer, supplier or adviser. Choose at least one.
   - **Language of the invitation**.
   - **Your reference** and **Your message**, if you like. Your message is shown as plain text.
3. Choose **Send invitation**. It goes out within a few minutes.

We email them in your business's name, through to.co. The form says how many invitations your business can send a day.

## What they do

The email opens the invitation on your to.co address. They sign in to my.to.co and accept for their business. If their business is not on to.co yet, they add it from its register first, free, and come back to the invitation. Receiving and answering documents is free on every plan.

They can also decline. You are told it was declined, not who declined it.

## Reminders

If they have not answered, we email a reminder in your name 1, 3, 7, 10 and 14 days after the invitation. Reminders stop as soon as they answer, stop invitations, or their email cannot be delivered.

An Owner can change this under **Invitation reminders**: keep **The default**, **Choose the days** (up to 6 days, from day 1 to day 30), or choose **No reminders**. A change applies to invitations sent from then on.

To stop the reminders for one invitation, open it and choose **Stop reminders**. The invitation stays open.

An invitation can be answered for 14 days, or until 7 days after its last reminder if that is later: 21 days with the default reminders.

## What you see

Each invitation shows its status in **Trading partners**: **Invited**, **Connected**, **Declined** and so on, and whether the email was delivered, opened and a link clicked. Opens are approximate: some email apps open every message by themselves, and some never report an open.

To withdraw an invitation, choose **Cancel invitation**. The link in their email stops working.

If an invitation ends without an answer, you can invite that business once more, 30 days after it ended.

## Stopping invitations

Every invitation and reminder has a link to stop invitations. Whoever uses it gets no more invitations from any business on to.co at that address, and no other optional email from to.co. Email they need, such as sign-in codes, still goes.