Step-by-step instructions
1
Log in to Commerzbank Corporate Portal
Sign in via commerzbank.de with your corporate user ID and photoTAN/token.
2
Select Payments > File Transfer
Open the payments overview and click 'File Upload' (Dateiübertragung / Sammelüberweisung).
3
Upload the ISO 20022 XML file
Upload the payment file generated by Stack2Pay. The portal instantly populates the payment queue.
4
Authorize the batch
Review the summary and confirm execution.