Important: HomeGauge.com and HG Services will be unavailable due to scheduled maintenance starting at 5 am on Sunday, April 29th 2018 (EDT). Maintenance is expected to last approximately 2 to 7 hours. During this time all HomeGauge.com website features will be unavailable including: online scheduling, online report delivery access to the dashboard via software or companion, as well as customer & REP access to reports.
When opening an old report, you may get this message:
"The template that was used to create this report (...) has been modified since the report was created. You will NOT be able to modify the template while viewing this report."
When you save a report, the template is merged into the report so that the template as it was that day stays the same, in other words no changes you make to the standalone template will affect that finished report.
The reason the software prevents you from editing the template of an older report is to prevent your current templates from being overwritten. For example: You fine-tune your template exactly how you want it. You then write a report using your template. Over the next month, you make further changes to your template. You end up needing to open the report you wrote a month ago, and try to make edits to the template. If the software allowed this, the entire month that you've spent improving your template would be overwritten with this older report's version of the template.
You can absolutely still edit the template that was used to create this report. To do so, you'll need to by save a copy of the template and give it a new, unique name.
Further learning: What are report templates and how do they relate to reports?