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It will bring the following screen which we need to fill out:
Image 1 - General and Execution Criteria
Image 2 - Email Content and Recipients Sections
General
Shown in red box (1) at the top of the first image above. This section has the preliminary information such as the name. Also, if you would like to create activity, make sure the related checkbox is checked.
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On this section, the reminder can either be sent to certain role(s) shown in red box number 12 on the second image, or to specific recipients (blue arrow number 13) by clicking the Add link below that (pink box number 15). It can also be set to exclude certain recipients by clicking the Modify link (black box number 14) beside the Excluded Users shown at the bottom of the second image.