FSM glossary

SAP Field Service Management terms used across our docs, in plain English. Useful if you're new to FSM or comparing notes with our team.

FSM#

SAP Field Service Management — SAP's cloud platform for managing field service operations (service calls, activities, technicians, equipment).

FSM Shell#

The web UI customers use to interact with FSM. Extensions like EasyScreenViewer load inside FSM Shell as iframes.

Extension#

A third-party app that plugs into FSM Shell. Installed by an admin via Foundational Services → Extensions.

accountId#

A numeric identifier for an FSM tenant. Our license keys are bound to a specific accountId so they can't be used on a different tenant.

Cluster#

An FSM data center region — usually `de`, `eu`, or `us`. Your tenant lives on exactly one cluster (e.g. `de.fsm.cloud.sap`).

UDO (User-Defined Object)#

A custom record type your FSM admin defines to store data outside of FSM's built-in objects. EasyScreenViewer's UDO Viewer surfaces these as proper screens.

Outlet#

A defined spot in FSM Shell where an extension can render. EasyScreenViewer uses the SHELL_HOME_SCREEN outlet today.

Install parameter#

A value an admin provides when adding an extension — like a license key. FSM passes install parameters to the extension at runtime.

Foundational Services#

The admin section of FSM where extensions, users, and account settings are managed. Find it from the main FSM landing page.

Standard Report#

A type of EasyScreenViewer screen that queries FSM objects (Service Calls, Activities, Business Partners, etc.) with filters and joins.

SAP Document#

A document object that originates in SAP ERP — e.g. Sales Orders, Quotations, Invoices. EasyScreenViewer's SAP Document Viewer browses these alongside service data.

Custom screen#

A fully bespoke EasyScreenViewer screen with a custom layout. Available on the Complete SKU.

Entitlement#

A capability granted by a license — one of `standard`, `udo`, `sap`, or `custom`. The SKU you buy determines which entitlements your license includes.

SKU#

A specific product configuration we sell. For EasyScreenViewer: Single (one entitlement), Dual (two), or Complete (all four).

License JWT#

A signed JSON Web Token that encodes your entitlements, accountId, and contract expiry. Our backend verifies the signature server-side on every validate call.

Ed25519#

The signing algorithm we use for license keys. Modern, fast, and not subject to the RSA key-size escalation cycle.

Revocation#

Marking a license as invalid before its natural expiry. Useful after a suspected leak. Takes effect within an hour as customer caches expire.