The present disclosure describes methods, systems, and computer program products for modeling exception flows in an integration system. One computer-implemented method includes identifying, by operation of an application integration system, an exception corresponding to an integration operation of an integration process, determining, by operation of the application integration system, a type of the exception, determining, by operation of the application integration system, one or more exception handling patterns for the type of the exception, and configuring, by operation of the application integration system, an exception flow of the integration process based on the one or more exception handling patterns.