--- title: Use external IDs to match spaces between Workplace Service Delivery for Mappedin description: After importing a new Mappedin building or after importing an existing Mappedin building, if the locations don't match in Mappedin and Workplace Service Delivery, then use external IDs to resolve space location issues. locale: en-US canonical_url: https://www.servicenow.com/docs/r/australia/employee-service-management/wsm-mappedin-ext-ids.html release: australia topic_type: task last_updated: "2026-03-12" reading_time_minutes: 1 breadcrumb: [Use, Workplace Space Mapping, Workplace Service Delivery, Employee Service Management] --- # Use external IDs to match spaces between Workplace Service Delivery for Mappedin After importing a new Mappedin building or after importing an existing Mappedin building, if the locations don't match in Mappedin and Workplace Service Delivery, then use external IDs to resolve space location issues. ## Before you begin Role required: employee and admin ## Procedure 1. Navigate to **All** > **Workplace Core** > **Space Administration** > **Buildings**. 2. Click a building that has spaces that don't match locations. 3. Click the **Generate external IDs** related link. 4. Click the **Spaces** tab. External IDs appear for each space. You can also create external IDs for multiple buildings. 5. From the **Buildings** list, check each building that you want external IDs for. 6. Click **Action on selected rows** and select **Generate external IDs**. **Note:** Buildings with spaces that have existing external IDs are ignored. 7. Click **Yes** on the **Confirm** pop-up. An email notification verifies the generated external IDs for the spaces, floors, and buildings. Use the links in the email to export a file that you can provide to Mappedin. **Parent Topic:**[Using Workplace Space Mapping](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/employee-service-management/wsm-using-workplace-space-mapping.md)