Deploying case page layout using change sets updates "Default" value for Case Assignment Checkbox to be unchecked
|Knowledge Article Number||000240210|
|Description||Customers may experience that when deploying case page layout using change sets updates "Default" value for Case Assignment Checkbox to be unchecked while the other checkboxes are retained as it is. The same behavior is experienced using Force.com IDE tool / ANT tool.
|Resolution||This is working as designed and is also documented in our Developer Documentation here
runAssignmentRulesDefault: Only relevant if showRunAssignmentRulesCheckbox is set; indicates the default value of that checkbox
showRunAssignmentRulesCheckbox: Only allowed on Lead and Case objects. If set, a checkbox appears on the page to show assignment rules.
Hence when deploying Case Page layout using change sets the checkbox "Show on Edit Page" must be checked for "Default" checkbox to carry over in deployment for Case Assignment Checkbox.