# Error handling workflow templates

Error handling workflow templates are crucial in Data Mover, facilitating the management of errors during contract execution.

These templates trigger automatically when a workflow template tied to a contract encounters an error.

Two distinct error workflow templates are available for selection in the **Actions** section of input, mediation and output contracts:

* **ehwft\_logAllVariables**: this template captures and logs all error-related variables from the parent instance, storing detailed logs in the messages.log file for future analysis and troubleshooting.
* **ehwft\_notifyError**: this template collects all variables from the failed parent instance. Instead of logging the error, it sends a prompt notification via the Notification Channel to inform relevant parties.

<figure><img src="/files/Z4dW5837WtdmD7XPTn0w" alt="" width="354"><figcaption></figcaption></figure>

The Error workflow template is selected when defining the Action of any type of contract following these steps:

1. In the **Error Handling** pane, enable the **Enable Workflow error handling** toggle button. &#x20;
2. Select **ehwft\_logAllVariables** or **ehwft\_notifyError** according to your needs.&#x20;

<figure><img src="/files/ow6nIlfbrBjKU0AzZ2Gk" alt=""><figcaption></figcaption></figure>

Depending on the selected template and applied configuration, detailed logs will be listed in **Monitoring** → **Logs** and in the messages.log file of the STENG or sent as a notification to the relevant parties.


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