I am no longer able to receive transactions via my payment solution.

If you have implemented the Payconiq integration yourself in the past, please check the points below to see if something has gone wrong.

Did you work with an external integrator for the integration? If so, please contact your integrator directly and share the information below with them so that they can check whether any adjustments are needed to ensure that your system can accept transactions correctly.

• Was the correct new endpoint URL used? Please check carefully that https://merchant.api.bancontact.net was used. For more information about the URL(s) that apply to your product, please consult the documentation and guidelines on the developer portal: https://docs.payconiq.be.

• Ensure that your API key has been updated in the production environment.
  • To view your existing API key, log in to your Merchant Portal (https://merchant-portal.bancontact.net).
  • If you have any questions about your API key, please contact info@payconiq.be.

Please note: keep in mind that the API key you received for the pre-production environment can only be used within this specific pre-production environment.

• If you have a problem with the application of the API, please pay close attention to the specific characteristics of these pages:
  • Payment V3 API: https://docs.payconiq.be/apis/merchant-payment.openapi.
  • Payment Refund Service API: https://docs.payconiq.be/apis/refund-public.openapi (optional – only if applicable to you).
  • Merchant Reconciliation API: https://docs.payconiq.be/apis/merchant-reconciliation.openapi (optional – only if applicable to you).

• Network: ensure that these URLs are correctly whitelisted:
  • https://merchant.api.bancontact.net/v3/payments.
  • https://payconiq.com/pay/2.
  • https://qrcodegenerator.api.bancontact.net/qrcode (optional - only if applicable to you).

Please note: if you also need to add the IP addresses to the whitelist, please contact devsupport@payconiq.be.

• When setting up the callback URL, please ensure you follow the specific documentation guidelines on the developer portal: https://docs.payconiq.be/guides/general/callback052025#one-way-tls-encryption-support.

Ensure that the format of the signature, headers, and fields is correctly applied according to the above guidelines.

The developer portal https://docs.payconiq.be is your main source of information. If you cannot find a solution based on the above, please do not hesitate to contact devsupport@payconiq.be and share the following information:

• Merchant ID
• Exact timestamps of the calls
• IP address used
• API call body