What is the key difference between 'on Error Propagate' and 'on Error Continue'?

The key difference between 'on Error Propagate' and 'on Error Continue' is that one stops the flow execution while the other allows processing to continue. When using 'on Error Propagate,' if an error occurs, the flow will terminate, and any errors will be propagated upstream. This means that the overall process is halted, and the error is returned to the calling flow or system for further action, whether logging or handling.

In contrast, 'on Error Continue' allows the flow to proceed even after an error occurs. This option enables the processor to continue executing the subsequent steps even if an error is encountered in a previous part of the flow. Essentially, it provides a way to handle errors gracefully by allowing the process to carry on, which can be crucial in certain scenarios where you do not want an entire flow to be interrupted by an error.

Understanding this distinction is vital for designing robust applications in MuleSoft, as it affects how applications respond to errors and manage the flow of data and control within your integration processes.