{"revision":"c10276e953456835cdbb1f3a60d58ae1980be353","document":{"id":20031,"path":"impact/using-impact-scan-engine.md","title":"Run on-demand scans","bundle":null,"doc_type":null,"release":"australia","body":"\n# Run on-demand scans\n\nYou can initiate some scan types on-demand to run whenever they are required.\n\nYou can initiate the following scan types on-demand.\n\n<table id=\"table_jxp_zlk_hhc\"><thead><tr><th>\n\nScan type\n\n</th><th>\n\nDescription\n\n</th></tr></thead><tbody><tr><td>\n\nApplication scans\n\n</td><td>\n\nScan in-development applications to identify definition findings before publishing to the application repository. Application scans give insight into health scores, the number of findings, and the total impact of findings within your custom applications. **Note:** View application health scores in the Application Health dashboard by navigating to **ALL &gt; Impact &gt; Platform Health &gt; Application Health**. Health scores are calculated based on finding severity, count, and policy impact.\n\n</td></tr><tr><td>\n\nLimited definition scans \n\n</td><td>\n\nScan your instance against a single specified definition or definition suite.\n\n</td></tr><tr><td>\n\nUpdate set scans \n\n</td><td>\n\nScan open update sets for findings to get insights into what you are importing and exporting across your environments. \n\n</td></tr><tr><td>\n\nInstance scans \n\n</td><td>\n\nScan your ServiceNow instance for findings. These scans return the findings and store them in the Opens Findings table.  **Note:** Only users with the Scan Engine Admin role can initiate instance scans.\n\n</td></tr></tbody>\n</table>Scheduled instance scans can be executed immediately using the **Execute Now** action, but they cannot bypass their configured schedule settings. Real-time scans run automatically during record saves and cannot be manually triggered.\n\n**Note:** The Scan Engine integrates with certain development tools, such as App Engine Studio, ServiceNow Studio, and script editors. It scans business rules, script `includes`, UI scripts, client scripts, ACLs, record producers, and other script-containing records in real-time as they are saved.\n\nScans are initiated in different ways. They run using the Scan Engine properties you configured.\n\nFor more information, see [Configure Scan Engine parameters](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/configure-scan-engine-properties.md) and [Manage definition properties](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/additional-scan-engine-properties.md).\n\n-   **[Initiate application scans](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/initiating-on-demand-scans-scan-engine.md)**  \nScan applications to identify definition findings before publishing to the application repository. Application scans give insight into health scores, the number of findings, and the total impact of findings within your custom applications. When Suite Scan is enabled, choose between scanning all active definitions or a curated suite.\n-   **[Initiate update set scans](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/initiate-update-set-scans.md)**  \nScan open update sets for findings to gain insights into what you're importing and exporting across your environments. When Suite Scan is enabled, choose between scanning all active definitions or a curated suite.\n-   **[Initiate instance scans](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/initiate-instance-scans.md)**  \nYou can scan your ServiceNow instance for findings.\n-   **[Initiate limited definition scans](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/initiate-limited-def-scans.md)**  \nYou can scan individual definitions or suites of definitions on-demand.\n\n**Parent Topic:**[Run your first scan with the Scan Engine](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/run-scan-engine.md)\n\n**Related topics**  \n\n\n[Full and delta instance scans](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/scan-engine-parallel-processing.md)\n\n[Initiate and manage scans](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/impact/initiate-manage-scan-engine.md)\n\n"}}