How do I change my Merchant number?

We understand that you will need to change your merchant number from time to time, so we will try and ensure that the transition process is as smooth as possible for you. 

If you have been given a new merchant number by your acquiring bank to replace a previous one or you have changed merchant banks then you will need to send all the new details to us by emailing mnchanges@sagepay.com.

For security reasons, this email request needs to be sent from the billing contact on the Sage Pay account, along with the following details:
 
•    Your Vendorname
•    Current Merchant number
 
•    New Merchant number you are changing to
•    Company number (if Natwest Streamline)
•    New Merchant bank you are changing to (if Applicable)
•    Currency of the merchant number
•    Account Type of merchant number i.e. ecommerce, MOTO or continuous authority
 
Once we have received your email we will update your account, send the relevant details to your new merchant bank, where they will then allocate your terminal IDs, and confirm the details you have provided.  This process can takes 2 - 5 days to return to Sage Pay after which time we will activate the new details on your LIVE account and inform you accordingly.

Please also be aware, that once your new merchant number is confirmed by your merchant bank and added to your Live account, 3D Secure may cease to work until your merchant number is enabled and registered with this facility.  This process can take up to 14 working days on top of the time it takes for your merchant number to be confirmed by your merchant bank.

IMPORTANT NOTE:

• The Merchant number change process is a complex process and can take a minimum of 7 working days to complete.
• we would advise that you do not close your existing merchant number or settlement bank account. We recommend that you keep your old merchant number account open for at least 30 days or at least until we have informed you that the change over was successfully completed. Closing your old account too soon could mean transactions will not be processed and those that were may not be settled. We will keep you updated however, Sage Pay have no control over this and it will need to be managed by you.
• If you have 3D Secure applied to your existing Merchant Number, this will be removed from your Sage Pay account as soon as we apply the New Merchant Number, as it is Merchant Number specific.

Sage Pay will request 3D Secure be set up with your new Merchant Number but this takes the banks 14 working days to set up with Visa & MasterCard. We can only apply for 3DSecure once the banks have confirmed the merchant number is correct and set up at their end and we are only able to add 3D Secure to your Sage Pay account once confirmation has been received from Visa & Mastercard via your acquiring bank. So your merchant number will be changed before 3DSecure is set up.

N.B: If you are changing to a BMS Merchant Number, you will need to apply directly to BMS for 3D Secure to be set up and you will need to forward the setup details as soon as the bank has provided them to you.