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Business Exception and application exception in UiPath...




In UiPath, a leading Robotic Process Automation (RPA) tool, exceptions are used to handle errors and unexpected situations that may arise during the execution of automated processes. There are two primary types of exceptions: Business Exceptions and Application Exceptions.

Business Exceptions
Business exceptions are used to handle errors that occur due to specific business rules or logic. These exceptions are typically expected and can be planned for.

For example:

A required field is empty in an input form.
The data format does not match the expected pattern.

A business rule validation fails, such as an invoice amount exceeding a certain threshold.

Business exceptions are usually raised intentionally using the "Throw activity" when a specific condition is met.

These exceptions allow the robot to gracefully handle scenarios where the business logic cannot proceed, often by logging the issue and moving on to the next transaction or alerting the user.

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Application Exceptions


Application exceptions are used to handle unexpected errors that occur due to issues with the applications or systems being automated. These are generally unplanned and can be due to:

#System crashes or downtime.
#Network issues or timeouts.
#File not found or access denied errors.
Unexpected pop-ups or dialogs that interrupt the automation.


Application exceptions are typically caught using the Try Catch activity. When an application exception occurs, the robot can log the error, retry the operation, or perform any necessary cleanup actions.

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Handling Exceptions in UiPath


Try Catch Activity: This is used to catch and handle exceptions. It allows you to define a Try block where you place the activities that might throw an exception, and a Catch block where you handle the exception.



Throw Activity: This is used to explicitly raise an exception. It is commonly used for raising business exceptions.


Retry Scope Activity: This is used to retry a set of activities until they succeed or a specified number of retries is reached. This is useful for handling transient application exceptions.


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Best Practices :

Logging: Always log exceptions with detailed messages to aid in troubleshooting.


Granular Handling: Use multiple Catch blocks to handle different types of exceptions specifically.


Retry Mechanism: Implement retry mechanisms for handling intermittent application exceptions.

Graceful Degradation:

Ensure that business exceptions are handled in a way that allows the process to continue or fail gracefully without causing disruptions.

By properly distinguishing between business and application exceptions, you can create more robust and reliable RPA solutions in UiPath.