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Welcome to our Dev Docs!


Your system needs to be kept in sync with all changes processed via customer self service.

To keep your system synchronized please pay attention to the following advice:

  • Never rely on the customer's workflow will ever reach the last step, e.g. the customer might have closed the browser before success page was loaded, or the final response might have been lost in the vasts of internet. You need to face this by consuming our Webhooks and using them to trigger subsequent processes on your side.

  • Do not presume your customer will finish a process, e.g. do not create a customer in your database before you got notified by billwerk with the CustomerCreated webhook showing the customer was created successfully.