RAGS_CC_GET_LAST_USAGE - force new start date

Hi All

I have a scenario where I have 365 days of UPL data extracted into my CCLM. There was no previous last used date calculated and held within tables AGS_CC_LAST_USG or AGS_CC_USAGE.  Therefore, the program RAGS_CC_GET_LAST_USAGE run via the job SM_CCL:LUSG_<SID>_<INSTALLATION_NUMBER> has calculated the start date from the AGS_CC_EXTRACTOR table, setting it to sy-datum -3.

However, what I really need is to reset this date to last year.  Currently I am thinking that I will have to somehow remove all the data for the SID in question, apart from one row with a last used date of the date I require.

Anyone else have this issue and found a better solution?

Thanks

Ian