Helping Hand Questions for Advanced-Administrator

Make a validation rule on the Opportunity Product object to require custom date fields based on the product family is how the administrator should ensure the data is captured properly. A validation rule is a way to enforce data quality and integrity

A record-triggered flow lets you automate actions when a record is created or updated. You can use scheduled paths to schedule actions relative to a date field on the record, such as close date. You should configure the trigger to flow after the record is saved so that you can access the updated field values. References: https://help.salesforce.com/s/articleView?id=sf.flow_concepts_trigger_types_record.htm &type=5

Workflow debug log category captures information about workflow rules, flows, processes, and actions that are executed as a result of a DML operation. References: 

Check the Reevaluate Workflow Rules After Field Change box on the Approval Process Field Update Action is what the administrator should do to troubleshoot the issue. This option allows the approval process field update to trigger any workflow rules or processes that are based on the updated field value. If this option is not checked, the approval process field update will not trigger any workflow rules or processes, and the Process Builder will not fire