Workflow validation Workflow validation examines different characteristics of a workflow to locate issues that might prevent the workflow from being published or cause it to fail. Validation prevents workflows with critical flaws from executing and resulting in an unstable or incomplete state. There are a number of validators in the base system that notify workflow designers of potential problems. For example, multiple End activities, disconnected transitions, incorrect table references, missing sublows, and dependencies affected by update sets. A workflow validation report displays the results from each validator, including a message explaining what was found. The system automatically validates a workflow when you publish it. You can also run validation on a workflow directly from controls in the Workflow Editor. Validate a workflow from the workflow editorYou can manually validate a workflow from the workflow editor.Validate a workflow from the Workflow Version formYou can generate a workflow validation report from the Workflow Version form.Highlighting critical errorsThe graphical workflow editor highlights critical errors when a workflow is loaded.Validations at publishingIf you attempt to publish an invalid workflow or a workflow with potential problems, the system displays an error message and blocks the operation, if necessary.Workflow validation reportThe validation report summarizes the results of each separate workflow validation.Workflow validatorServiceNow offers several workflow validators for workflow designers to test their workflows.