I would suggest to use a calculated field on Work Order that subtracts the two fields (may have to convert both to numbers first) and show when <>0 and your other criteria. Something like: IF(ISNUMBER(VALUE(TECH_TEXT_INPUT__c)), (VALUE(TECH_TEXT_INPUT__c)-AUTO_NUMBER__c),9999)
Hi Paul, I am not sure if you are aware but Salesforce have functionality where you can subscribe to a report and have it sent to you only if there are records in it. So once you have built your report you can try that to get the results sent to you daily or on a schedule you choose. A link below for instructions.