Hello I would need to know how to make it send an amil automatically one hour before the date / time field says for example if it is 12:25 I send it at 11:25
You can attain this using the Workflow Rule with Time-Dependent Workflow Actions.
Refer the below step by step sample example: https://www.veonconsulting.com/time-based-workflow-salesforce/
But while you adding the time trigger choose Hours instead of Day , Before instead of after, Mention 1 in the first box. refer the below link to edit or add the time trigger: https://www.shellblack.com/administration/time-dependent/
You can attain this using the Workflow Rule with Time-Dependent Workflow Actions.
Refer the below step by step sample example:
https://www.veonconsulting.com/time-based-workflow-salesforce/
But while you adding the time trigger choose Hours instead of Day , Before instead of after, Mention 1 in the first box. refer the below link to edit or add the time trigger:
https://www.shellblack.com/administration/time-dependent/
Thanks,
Maharajan.C