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My client will have more than 1000 active workflow instances running in SharePoint Server 2013. I would like to know if SharePoint 2013 workflow can support this? How many workflow instances can be run in sharepoint? What is the impact of all these workflows instances running at the same time?
Thank you for your help
http://technet.microsoft.com/en-us/library/cc262787.aspx#Workflow here are the limitations for using Workflows in SharePoint 2013 according to Microsoft.
As you can see for example:
Published workflow definitions per web site:
1,000 per web site Supported
The maximum supported number of published workflow definitions per web site is 1,000.
Total workflow associations per site:
1,799 per site
Boundary:
The Service Bus supports a maximum of 1,799 subscriptions per scope. This maximum value includes the sum of both published and unpublished associations.
Yes, SharePoint can handle more than 1000 running workflow instances. Once the workflow engine spots an asynchronous activity to be executed next, the state of the workflow instance will be stored in the Database. It's called 'Workflow State Dehydration'. And based on external triggers/events(form button click, timer etc.), the state will be loaded back into the process, then it'll continue executing further steps. So, 1000 is a perfectly valid number.
