In plain English
Services are produced and consumed at the same time, usually by a person, and cannot be inspected before purchase. The original four Ps do not account for any of that.
The three additions cover it: who delivers the service, how the delivery works, and what tangible signals reassure a buyer who cannot examine the product in advance.
What to know
Why it matters
For consultancies, agencies and professional services, the three extra Ps are where differentiation actually lives. Two firms can offer the same service at the same price and be completely different to buy from.
Common mistakes
FAQs
Do I need the 7Ps or the 4Ps?
Services benefit from the seven. Physical products usually need only the four.
Which of the three additions matters most?
Physical evidence, because it addresses the buyer's inability to inspect the service first.
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