Forum Discussion
Microsoft Project Service Core Jan 2026 Update locked Plans table
Hi Bridgeburn
According to our ticket with Microsoft:
A bug has been identified in Project Operations (PO) version UR62 — 4.161.0.1688 and PS Core version 1.0.161.1722. Microsoft has acknowledged this bug.
The Microsoft support team clarified that:
- Microsoft can run a backend script to address the issue, and this may take up to 48 hours to take effect.
- However, the script is only required if you are already on the fixed version and the issue persists, which matches your scenario.
Fixed version:
The first released version after the affected build (4.161.0.1688) is Dataverse 4.162.0.962 (January 2026), which is the fixed version that resolves the issue. https://learn.microsoft.com/en-us/dynamics365/project-operations/whats-new/whats-new-home-page
In our ticket we successfully got unlocked the msdyn_project table when the Microsoft support engineer run the script in two of our affected environments.
Hope it helps
We would like to add our voice to emphasize the critical urgency of this issue. We are in the midst of a large‑scale organizational deployment and must continuously adjust the solution as part of our rollout. Losing the ability to modify the Plan table is effectively bringing our implementation to a standstill and preventing us from meeting our deliverables.
This situation requires immediate attention, and the change urgently needs to be reverted.