# Web Services API: RaiseException: What is the parameter value for exceptionName in RaiseException API method

**URL:** <https://discuss.workflowgen.com/t/web-services-api-raiseexception-what-is-the-parameter-value-for-exceptionname-in-raiseexception-api-method/313>\
**Category:** Web API\
**Created:** [October 5, 2013, 5:51am UTC](https://discuss.workflowgen.com/t/web-services-api-raiseexception-what-is-the-parameter-value-for-exceptionname-in-raiseexception-api-method/313 "2013-10-05T05:51:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![wfg-admin](https://yyz2.discourse-cdn.com/flex030/user_avatar/discuss.workflowgen.com/wfg-admin/32/714_2.png) [@wfg-admin](https://discuss.workflowgen.com/u/wfg-admin)\
**Post date:** [October 5, 2013, 5:51am UTC](https://discuss.workflowgen.com/t/web-services-api-raiseexception-what-is-the-parameter-value-for-exceptionname-in-raiseexception-api-method/313/1 "2013-10-05T05:51:01Z")

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The possible values are `CANCEL`, `ERROR`, `TIMEOUT`, and `ASSIGNMENT_ERROR`.

Since WorkflowGen version 5.6.4, the `exceptionMessage` parameter is used with the `ERROR` exception to provide more details about the error in the action follow-up form.