Validating all fields/columns are on input using Field Info and Message tool

Question

Hello All,

I have a workflow that needs to start by looking at the excel input and confirm there are no missing or additional fields.  
From the input tool, I added a Field Info tool and created a text input to match the fields.  I have then joined these records - anything that goes to Left Join will be the missing fields, anything to the Right Join will be additional field.  I have added a formula tool to add the error message then used the Message tool to stop the workflow and display the error message.

My question is, how do I join this back to the workflow?  If there are no errors, I want the workflow to process as is.  If there is an error, I want the workflow to stop and display the error message.  I feel like I'm missing a piece to this puzzle.  Any help or suggestions would be greatly appreciated!

alexnajm · Answer

Or if you use Control containers, you can connect the Message tool to the next Control Container and select "Error - Stop Passing Records Through This Tool" in the Message tool

alexnajm · Answer

You can select the setting in Runtime to "Cancel Running Workflow on Error" - the error will show in the audit log!