Breadcrumb Home/ Spark: Customer Service (Be Proactive) - Stack the Odds for “Yes”/ Spark: Customer Service (Be Proactive) - Stack the Odds for “Yes” Spark: Customer Service (Be Proactive) - Stack the Odds for “Yes” 5 minutes Language English Customer Service Sparks are quick, targeted lessons that build the habits behind great service—professionalism, promptness, and proactive communication. Back to Course Title Spark: Customer Service (Be Proactive) - Stack the Odds for “Yes”