Create an account on www.tftw.me and login.

Add a new store as shown on this screenshot.

Select PowerPay as payment method.

Add your myshopify.com domain (1.) and click on Install now (2.).

You will now be redirected to your Shopify store. If you are not logged in to your Shopify store yet, please log in.

Click on "Connect"

Click on "Install App"

You will now be redirected to your www.tftw.me account.

For the next steps you will need your productive username (1.) & password (2.) which you got from MF Group. You can find them in your MF Group dashboard (onboarding.mfgroup.ch).

As soon you have them - please make sure to go back to the onboarding page.

Add the name of the store (1.), your MF Group username (2.), your MF Group password (3.), accept the terms and conditions (4.) and click on "Continue" (5.).
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Click "Activate MF Group Kauf auf Rechnung / Facture"
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You will now be redirected to your Shopify store again.

Click on "Activate Pay by Invoice"

Your store can now accept Pay by Invoice payments from your customers.