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After creating the YAPEAL account, add the IBAN to the box you intend to connect to Swiss21 / Abaninja. Then connect DeepBox on the Swiss21 portal while keeping both browser tabs open. As soon as the connection is successfully made you can log into Abaninja and add the YAPEAL account in the banking area. You can now upload your documents from DeepBox to Abaninja and conveniently pay your invoices with YAPEAL.