The error produced is the following:
The change needed to allow the Microsoft Dynamics GP reports to be deployed is a very simple one to make.
Open the install folder of SQL Server Reporting Services (which for SQL Server 2012 is %programfiles%\Microsoft SQL Server\MSRS11.MSSQLSERVER\ReportingServices\ReportServer and edit the web.config file:
The simplest way of editing the file is to use Notepad:
Scroll down the web.config file and find the following line:
<httpRuntime executionTimeout="9000" />
Replace it with the following:
<httpRuntime executionTimeout="9000" maxRequestLength="20690" />
Save the file and restart the deploy and the reports should now redeploy.
If you have made the change at the error message, you may see the following error report; hit Retry and it should continue (you may need to wait a short time for SQL Server Reporting Services to cycle, before the deploy will successfully resume:
Microsoft Dynamics GP Utilities
Business Intelligence reports were not deployed
Error DetailsThe deployment has exceeded the maximum request length allowed by the target server. Set maxRequestLength="20690" in the web.config file and try deploying again.