You need to share the SAS-generated log information with expanded SAS code which will likely reveal the problem cause. Reply again to your post and PASTE the log with related diagnostics messages as generated by SAS.
316 ods html body="G:\Research and Analysis Group Folder\35. Customer Analysis\Group
316 ! Strategy\Output\Scorecard_&grpdate";
NOTE: Writing HTML Body file: G:\Research and Analysis Group Folder\35. Customer Analysis\Group
ERROR: Physical file does not exist, H:\Documents\RB attrition Analysis\G:\Research and Analysis
Group Folder\35. Customer Analysis\Group Strategy\Output\Scorecard_JUN09.
WARNING: No body file. HTML output will not be created.
You haven't shared enough SAS code leading up to the error - that's the most important, as much for your diagnosis as well as those individuals who subscribe here. It's quite clear that the generate SAS code is not compatible with a file directory/name structure -- which realistically you will need to help debug. Forum subscribers have little, if any, knowledge about your SAS application.