The product group released the November 2025 Cumulative Update for SharePoint Workflow Manager. This CU consists of a fix for SharePoint Workflow Manager and the SharePoint Workflow Manager client components which need to match SharePoint Workflow Manager. The KB article for November 2025 CU will be available at the following Location in a couple of […]
After installing SharePoint Workflow Manager August 2025 CU on a machine which does not have a recent patch level of SharePoint Server Subscription Edition installed error messages similar to the following can be found in the logs: Could not load file or assembly ‘System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51’ or one of its dependencies. Reference: Trending Issue: […]
Important: If September 2025 CU for SharePoint has been installed before, remove the NT Authority\system account from WSS_WPG and IIS_IUSRS local security groups of the SharePoint machines – otherwise installing the SharePoint fixes will fail. For more details check this article: Trending Issue: SharePoint fixes fail to install after installation of September 2025 CU Below […]
The product group released the October 2025 Cumulative Update for SharePoint Workflow Manager. The KB article for October 2025 CU will be available at the following Location in a couple of hours: KB 5002785 – October 2025 Update for SharePoint Workflow Manager The download for October 2025 CU is available through the following link: Download […]
Since multiple Trending Issues have now been documented for the September 2025 CU, and it’s becoming increasingly difficult for individuals to keep track, I’ve decided to create a single summary page. Issue Status SharePoint 2013 Workflows fail in combination with Classic Microsoft Workflow Manager after September 2025 CU Warning: Upgrade to SPWFM required before July […]
SharePoint Server 2025 CU for SharePoint Server 2016, 2019 and Subscription Edition includes security hardening for SharePoint Server 2013 workflows which enforces the most recent SharePoint Workflow Manager updates to be installed on SPWFM. As a side effect this also prevents classic workflow manager workflows from running as this version does not comply with this […]
[Update from August 22nd – additional assemblies added] SharePoint Workflow Manager August 2025 CU switched from using the System.Data.SqlClient database connectivity layer to the modern and more powerful Microsoft.Data.SqlClient database connectivity layer. Microsoft.Data.SqlClient has different dependencies which are not automatically fulfilled on machines which do not have SharePoint Server Subscription Edition installed. Error messages similar […]
The product group released the August 2025 Cumulative Update for SharePoint Workflow Manager. The KB article for August 2025 CU will be available at the following Location in a couple of hours: KB 5002750 – August 2025 Update for SharePoint Workflow Manager The download for August 2025 CU is available through the following link: Download […]
The product group released the June 2025 Cumulative Update for SharePoint Workflow Manager. The KB article for June 2025 CU will be available at the following Location in a couple of hours: KB 5002737 – June 2025 Update for SharePoint Workflow Manager The download for June 2025 CU is available through the following link: Download […]
The product group released the May 2025 Cumulative Update for SharePoint Workflow Manager. The KB article for May 2025 CU will be available at the following Location in a couple of hours: KB 5002726 – May 2025 Update for SharePoint Workflow Manager The download for May 2025 CU is available through the following link: Download […]
As more and more customers are upgrading to SharePoint Workflow Manager I have added an additional Link section on the right hand side of this blog related to SharePoint Workflow Manager topics. Enjoy!
At the moment we have official documentation available on how to upgrade an existing Microsoft Workflow Manager installation to SharePoint Workflow Manager and how perform a fresh installation of SharePoint Workflow Manager. What is missing are the required steps if an existing Microsoft Workflow Manager should be replaced with a new SharePoint Workflow Manager on […]
