--- schema_version: "1" id: 9c48d80e18ab373d5db7ae642ee2f65498aa6173c94302b9c9e056e6071b6d34 title: Track Asset Availability and Reliability in Field Service collection: admin version: current locale: en-us portal_url: https://docs.salesforce.com/admin/current/en-us/service/264-0-0/fs_track_availability_and_reliability.md canonical_url: https://help.salesforce.com/s/articleView?id=service.fs_track_availability_and_reliability.htm&release=264.0.0&type=5 source_site: help.salesforce.com content_type: documentation content_hash: 2091068871d921696004bcddb51afd6c3afc24e00988b65b38aa815271ecfabe description: Obtain availability and reliability statistics to measure asset performance, efficiency, and depreciation. products: - Field Service release: "264" --- # Track Asset Availability and Reliability in Field Service Obtain availability and reliability statistics to measure asset performance, efficiency, and depreciation. ### Required Editions
Available in: both Salesforce Classic (not available in all orgs) and Lightning Experience
The Agentforce Field Service and Operations core features, managed package, and mobile app are available in Enterprise, Unlimited, and Developer Editions.
1. On the asset, enter the Average Uptime Per Day, Uptime Record Start Date, and Uptime Record End Date. ![Asset availability and reliab ility fields](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-service-support_field_service-264-0-0-production-enus/3f7dceb9-dd70-454a-b49e-bbb4526a158d/support_field_service/images/fs_asset_downtime_fields.png) Average Uptime Per Day records the number of hours the asset is expected to be available on average every day. For example, the public elevators in a retail store that is open from 8 AM to 8 PM Monday through Saturday. The Average Uptime Per Day is calculated as 12 hours for 6 days divided by 7 days in the week, for 10.28 hours. 2. Use the Asset Downtime Periods related list to [Record Asset Downtime in Field Service](https://help.salesforce.com/s/articleView?id=service.fs_record_asset_downtime.htm&release=264.0.0&type=5 "Use the Asset Downtime Periods related list to record details of planned and unplanned downtime."). After updating Asset Downtime Periods, reload the Asset record to see the updated cumulative downtime, cumulative unplanned downtime, availability, and reliability. Availability and reliability are calculated when an uptime record start date is provided. When no uptime record start date is provided we don't calculate availability or reliability, and both fields are blank. Availability and reliability values are calculated as the ratio between expected uptime and actual uptime, allowing for: - planned and unplanned downtime (in calculating availability), that is _Availability = (expected uptime - accumulated planned and unplanned downtime) / expected uptime_ - unplanned downtime (in calculating reliability), that is _Reliability = (expected uptime - accumulated unplanned downtime) / expected uptime_ Average Time to Repair and Average Time Between Failures are calculated as follows: - _Average Time Between Failures = (Uptime in days - unplanned downtime in days) \* Average uptime per day / number of unplanned downtime count_ - _Average Time to Repair = Unplanned downtime in hours / number of unplanned downtime count_ ![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-service-support_field_service-264-0-0-production-enus/3f7dceb9-dd70-454a-b49e-bbb4526a158d/images/icon_note.png) Note Average Time to Repair and Average Time Between Failures are calculated only when Uptime Record Start Date and Unplanned Downtime Count information are provided. The “unplanned downtime count” is calculated on the asset and based on the number of "AssetDowntimePeriod" records that are categorized as “Unplanned”. To calculate Average Time Between Failures, the Uptime Record End Date must be provided as well. Expected uptime is calculated as follows: - If the uptime record end time is in the future or no uptime record end time is provided - _Uptime = the average uptime per day \* number of days between the uptime record start time and now_. - Else - _Uptime = the average uptime per day \* number of days between the uptime record start time and uptime record end time_. Planned and unplanned downtime are accumulated as follows: - If the uptime record start time or uptime record end time change, the accumulated downtimes are recalculated based on the uptime record start time and uptime record end time. If there’s no uptime record end time, all records after the uptime record start time are accumulated, including records dated in the future. - When a downtime record is added, updated, or deleted, the accumulated downtime is updated if the record’s downtime start or end date falls between the uptime record start time and uptime record end time. If there is no uptime record end time, all records after the uptime record start time are accumulated, including records dated in the future. ![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-service-support_field_service-264-0-0-production-enus/3f7dceb9-dd70-454a-b49e-bbb4526a158d/images/icon_note.png) Note If you record details of planned downtime, we recommended that you maintain the uptime record end time as a date close to now. This ensures that the availability and reliability calculations exclude planned downtime information. If the uptime record end time isn't set, and the accumulated planned downtime exceeds the accumulated uptime to date, the reliability and availability statistics may be reported as negative. The read only Outside Uptime Calculation Period checkbox indicates whether a record is excluded from the cumulative downtime calculation. ![Downtime record shown as outside uptime calculation.](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-service-support_field_service-264-0-0-production-enus/3f7dceb9-dd70-454a-b49e-bbb4526a158d/support_field_service/images/fs_asset_downtime_record_with_flag.png) ![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-service-support_field_service-264-0-0-production-enus/3f7dceb9-dd70-454a-b49e-bbb4526a158d/images/icon_note.png) Note When reporting on asset downtime records, you can’t filter records using the Outside Uptime Calculation Period flag nor can you include the flag in the report