Recently I got this workflow error while working with the SharePoint designer workflows in 2013. The error is about the creation of workflow variables/arguments more than 50 in number. By default max variables/arguments allowed in workflow is 50. If we create more than this, we encounter with the following error while publishing the workflow.
“Microsoft.Workflow.Client.ActivityValidationException: Workflow XAML failed validation due to the following errors: Activity “SomeXActivity” has 58 arguments, which exceeds the maximum number of arguments per activity (50).”
The resolution is like this:
Change the default settings of the workflow variable limit in the Workflow Manager table as follows.
Go to SQL where your Workflow Manager Db is stored and set these.
DataBase : WFResourceManagementDB
Table : WorkflowServiceConfig
WorkflowServiceMaxVariablesPerActivity : set it to required value and WorkflowServiceMaxArgumentsPerActivity : set it to required value.