tia-multiuserlisted

# TIA Portal Multiuser Engineering ## Scope Multiuser Engineering workflows using the TIA Portal Openness API. Covers Local Sessions, Server Projects, and Multiuser Commissioning. --- ## Reference files Load ONLY the reference file(s) relevant to the task. | Reference file | Load when the task involves | |---|---| | `references/v21-api-surface.md` | Comprehensive reference for `Siemens.Engineering.Multiuser` (LocalSession, ServerProject, MultiuserService). | --- ## Key Workflows ### Managing Local Sessions 1. Locate the `MultiuserService` on the Project. 2. Use `LocalSession` to interact with server projects. 3. Perform `Update()` to sync with the server. 4. `CheckIn()` changes to the server project. ### Multiuser Commissioning 1. Access `MultiuserCommissioningService` for commissioning tasks. 2. Manage asynchronous execution states. ## Enforcement 1. Always verify the `LocalSession` state before performing a `CheckIn`. 2. Use `AccessOptions` to handle conflicts during `Update`.