SharePoint 2013 Workflow suspended error: An unhandled exception occurred during the execution of the workflow instance

Recently I got the workflow suspended state error while sending an email to a SharePoint group from SharePoint 2013 using SharePoint designer workflow. I was simply trying to send an email to a SharePoint group in which there were few people presented in that group.

The full error message I was getting as:
RequestorId: bcc63931-04f1-be80-0000-000000000000. Details: An unhandled exception occurred during the execution of the workflow instance. Exception details: System.ApplicationException: HTTP 401 {“Transfer-Encoding”:[“chunked”],”X-SharePointHealthScore”:[“0″],”SPClientServiceRequestDuration”:[“47″],”SPRequestGuid”:[“bcc63931-04f1-be80-b697-37ca64a3d6df”],”request-id”:[“bcc63931-04f1-be80-b697-37ca64a3d6df”],”X-FRAME-OPTIONS”:[“SAMEORIGIN”],”Cache-Control”:[“max-age=0, private”],”Server”:[“Microsoft-IIS\/7.5″],”WWW-Authenticate”:[“Negotiate”,”NTLM”],”X-AspNet-Version”:[“4.0.30319″],”X-Powered-By”:[“ASP.NET”],”MicrosoftSharePointTeamServices”:[“15.0.0.4535″],”X-Content-Type-Options”:[“nosniff”],”X-MS-InvokeApp”:[“1; RequireReadOnly”],”Date”:[“Thu, 05 Feb 2015 16:13:27 GMT”]} at Microsoft.Activities.Hosting.Runtime.Subroutine.SubroutineChild.Execute(CodeActivityContext context) at System.Activities.CodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager) at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)

An unhandled exception occurred during the execution of the workflow instance

To resolve this issue “An unhandled exception occurred during the execution of the workflow instance“, please follow the below steps:

Open the SharePoint site, Click on the Settings icon form the top corner and then click on Site settings.

Then in the Site Settings page, click on Site permissions from the Users and Permissions section.

Then click on the particular SharePoint group to which you want to send the email.

Then click on Settings -> Group Settings as shown in the fig below:

In the Change group settings page, go to the Group Settings section and select the radio button Who can view the membership of the group? to “Everyone” as shown in the fig below:

Now it should send an email to the SharePoint group.

You may like following SharePoint tutorials:

• Read uses from Active Directory groups add as of SharePoint groups programmatically
• SharePoint Hosted Add-in: Send Email to SharePoint group using visual studio workflow
• SharePoint Groups or Active Directory (AD) Groups which should we prefer?
• Create a Leave Request Approval Workflow using SharePoint Designer 2013
• How to add edit task form URL inside SharePoint 2013 designer workflow email?
• SharePoint Hosted Add-in: Send Email to SharePoint group using visual studio workflow

Here, we learned how to solve an error An unhandled exception occurred during the execution of the workflow instance.