{"revision":"c10276e953456835cdbb1f3a60d58ae1980be353","document":{"id":36787,"path":"operational-technology/operational-technology-manager/add-custom-validation-for-devices.md","title":"Add a custom validation for devices","bundle":null,"doc_type":null,"release":"australia","body":"\n# Add a custom validation for devices\n\nCustomize the validation for your OT devices.\n\n## Before you begin\n\nThe base system for the **sn\\_otsm\\_sgc.SGOTAssetCustomValidationExtensionPoint** extension point uses the default **sn\\_otsm\\_sgc.SGOTExcelStagingAssetValidationProcessor** implementation script. You can add a customized validation by creating an implementation for the extension point in the Service Graph Connector for Operational Technology \\(Excel\\) scope.\n\nRole required: admin\n\n## Procedure\n\n1.  Navigate to **All** > **System Extensions Point** > **Scripted Extension Points**.\n\n2.  Select **sn\\_otsm\\_sgc.SGOTAssetCustomValidationExtensionPoint**.\n\n3.  Select the **Create Implementation** related link.\n\n    A script include is created where you can add your custom validation.\n\n4.  To add a custom validation, refer to the following validation scenario.\\[Omitted image \"validation-scenario.png\"\\] Alt text: Validation scenario for creating custom validations.\n\n5.  Select **Update**.\n\n\n**Parent Topic:**[Configuring the Service Graph Connector for Microsoft Excel](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/operational-technology/operational-technology-manager/configuring-service-graph-connector-for-excel.md)\n\n"}}