> **Description:** Process for transferring a merchant between partners while maintaining services.

# How to change a merchant's partner

Merchants can change partners at their own discretion,
and they are responsible for granting access to their data to their chosen partner(s).

If a merchant decides to change partners for their sales unit, identified by the Merchant Serial Number (MSN),
they must provide a letter of consent to Vipps MobilePay.
Then the sales unit must be reconfigured for use with new [partner keys](https://developer.vippsmobilepay.com/docs/partner/partner-keys.md).

For general information about signing up new merchants, see
[How to sign up new merchants](https://developer.vippsmobilepay.com/docs/partner/merchant-signup.md).

## Procedure for changing partners

The sales unit can only be used with one set of
[partner keys](https://developer.vippsmobilepay.com/docs/partner/partner-keys.md) at a time, so in the transition period,
partners will need to use the merchant's API keys.

1. The merchant logs in on the
   [business portal](https://portal.vippsmobilepay.com)
   and gets their API keys for the sales unit MSN ([How to find API keys](https://developer.vippsmobilepay.com/docs/knowledge-base/portal.md#how-to-find-the-api-keys)).

2. The merchant securely provides the MSN's API keys to *both* the
   old partner and the new partner. This ensures that, during the transition period, both partners can
   make API calls for the MSN without
   [partner keys](https://developer.vippsmobilepay.com/docs/partner/partner-keys.md).
3. The new partner contacts their partner manager or the
   [partner support team](mailto:partner@vippsmobilepay.com)
   to request and provide consent for the partner change.
   This initiates a reconfiguration of the sales unit MSN, which must be connected to the new partner instead
   of the old one.

   Include the following information:

   * Organization number
   * Name of the new partner
   * Name of the old partner
   * MSN for the sales unit
   * Test page, if the website changes
   * Date and time of desired transfer from old partner to new partner
   * Signature from the merchant

   When this is done, the sales unit will be connected to the new partner,
   and we will provide new [partner keys](https://developer.vippsmobilepay.com/docs/partner/partner-keys.md) for the sales unit.

4. The new partner's
   [partner keys](https://developer.vippsmobilepay.com/docs/partner/partner-keys.md)
   now work for the MSN.
   The old partner keys will no longer work for the sales unit.
5. The new partner will begin using their partner keys.
6. When the merchant is ready to remove the old partner's access
   to the sales unit, they can log in on the
   [business portal](https://portal.vippsmobilepay.com)
   and regenerate the API keys for the sales unit.
   See [How to regenerate API keys](https://developer.vippsmobilepay.com/docs/knowledge-base/portal.md#how-to-regenerate-api-keys) for step-by-step instructions.
   The previous API keys will become invalid and unusable.
   The old partner will no longer have access to the sales unit, while
   the new partner will continue to use their partner keys.

**Information**

The merchant should [generate new API keys](https://developer.vippsmobilepay.com/docs/knowledge-base/portal.md#how-to-regenerate-api-keys), so their keys can no longer be used by the old partner.

The new partner should *always* use the partner keys.
Use the
[Management API](https://developer.vippsmobilepay.com/docs/APIs/management-api/README.md)
to verify that the MSN is set up correctly. See the
[Management API quick start guide](https://developer.vippsmobilepay.com/docs/APIs/management-api/management-api-quick-start.md)
to get started.

**NOTE**

The Merchant Serial Number value (e.g., 281014) does *not* change when changing partners.

**NOTE**

The new partner will have access to all payments made to the sales unit.
It is not possible to limit the new partner's access, so they will be able to see payments made prior to the partner change.

> **Full site overview:** For every page in this documentation, read [https://developer.vippsmobilepay.com/llms.txt](https://developer.vippsmobilepay.com/llms.txt).