CSAT vs. NPS — when to use which
CSAT (Customer Satisfaction Score) and NPS (Net Promoter Score) measure different things — but are often confused. CSAT measures satisfaction with a single interaction ("How satisfied were you with the support call?"), NPS measures loyalty to the brand overall ("How likely are you to recommend us?"). For most operational questions CSAT is the right choice.
The practical difference: CSAT values are volatile and react quickly to changes — a bad service shift shows within days. NPS is slow — loyalty changes over months. Anyone planning weekly NPS measurements harvests noise instead of insight. CSAT per touchpoint, NPS once per quarter across all customers — that is the usual split.
A common mistake is to pack both metrics into one survey. This dilutes both signals because the context collides. Separate the measurements: CSAT directly after the touchpoint with two to three questions, NPS in its own survey, ideally three months removed from the last interaction. Each metric then gets the right context.