• composer require "sprain/swiss-qr-bill": "^4.1"
• composer require setasign/fpdi
• composer require tecnickcom/tcpdf
• composer require setasign/fpdf

• bin/console plugin:refresh 
• bin/console plugin:install --activate PitsQrBill
• ./bin/build-administration.sh
• bin/console cache:clear

• Reference Format - You can choose the reference format for ISO Bill. Format types are Classic Format and SCOR format. If you choose Classic format, then IBAN/QR-IBAN Number for Classic format and BESR ID for reference number must be filled. For SCOR format, only you need to enter the IBAN/QR-IBAN Number for SCOR format field.
• IBAN/QR-IBAN Number - This IBAN is the number you receive from your bank. Using this, reference number for the invoice is created. This should be unique for bank account holders.
•  BESR ID (optional) - You may have this BESR ID (from bank) please fill this field otherwise skip as it is an optional field.
•  Merchant Name/Company - Merchant name or company name (Name of the payment receiver). This name will be displayed in QR Bill slip.
•  Street - Street name where the shop is located.
•  Building Number - Building number of the building in which the shop is located.
•  Zip code - zip code of the shop.
• City - city of the shop
• Shop Country - country of the shop.
•  Show QRCode on order success page - Option to show QRCode on Order success page. To display the QR code on the order success page, this option should be set to "Yes”.
• Show QrCode on Invoice Pdf- Option to show QRCode slip on invoice pdf document. To include the QR code on the invoice pdf, this option should be set to "Yes”. 
•  Show QRCode on order mail - Option to add QRCode slip in Order mail. To display the QR code slip in the order mail, this option should be set to "Yes," and the link to slip will be available with the variable {{qrDataLink | raw }} in the order mail template and can be added in the mail as below

    {% if qrDataLink %}

    <a href="{{qrDataLink | raw }}">Download QrData</a>

    {% endif %}

•  Allowed Currencies - Only CHF is allowed.
•  Additional Information - This field is used for adding any additional information within the generated payment slip with QR code.

Follow the below steps to process the CAMT file.

• Navigate to Orders → QR Bill Payments
• Upload the payment statement from the bank in Camt054 format
• Click Process button in header section (Refer screenshot Figure 3 & Figure 4)

During the payment process, data in CAMT054 file is thoroughly checked and validated and if correct it will be processed further. If there is any mismatch or error present in the Camt054 format, the error message will be displayed after file processing. 

Four use cases can be seen while the payment is processed.

• If the reference number of payment file and order match and the amount is greater than or equal to the order amount, the order status is marked as "paid”.
• If customers paid only a less amount, then paid status will be kept as “In progress” and the paid amount will be shown in the order view page. Refer figure 5. 
•  If customers paid too much, then paid status will be “Paid” the paid amount will be shown in the order view page.
• If customer is paid without/incorrect reference number, then the invoice will not be processed.