Added custom date fields at contract;need to trigger mail using those dates

Question

Hi,
II have added 14 custom fields in the service order quotation for handling waranty start date and end dates capturing for the maximum of 7 years contract.
Then its usual yearly action of the waranty team to put the dates in those fields.
The first set of 2 input fields will be filled at the quotation creation itself; rest the set of 12 fields will be updated in this 7 years time.
My requirement is such that to the capture all the waranty end dates filled in the input fields and trigger a mail 30 days prior to that days.
Example : I have contract from 01/08/2004 to 31/07/2010.
Then my waranty startdate / end date can be filled by waranty team as 01/08/2004 to 31/07/2005 in the waranty first year.the i need to trigger a mail to waranty team on 01/07/2005.
For the second year if we have dates filled as 01/08/2005 to 31/07/2006; then to trigger mail on 01/07/2006.
I have tried using ACTIONS but couldn't get much help.
As a work around thinking for a report to fetch the contract for that Trans.type and check the dates with the present date + 30 and collect those to perfrom the respective actions.This is workaround.
Tried using the DATE TYPES creating 7 different DATE TYPES and assigning the ( end dates - 30 ) to that manually upon save.
and using this DATE TYPE along with the action definition can we acheive ?  but it too will be work around.
How to acheive this one. It became critical now in the project. 
Thanks and Regards,
Satish Akkina

Answer 1

Hi,
In your scenario, you don't need synchronous email facility.
Probably you can create a z table and maintain all required dates in this table (before saving your transaction somewhere you would have to read your custom fields and save them in this table along with object ID/GUID). Then create a report that would read dates from z table and then send emails to your warranty team. Schedule this report in background with frequency of once day.
Hope that helps.
Regards,
BJ