Working in Nairobi, Kenya, you encounter rules that are quite different from what you’d expect in Japan. The most striking one is the culture of “always communicate via WhatsApp.” WhatsApp is a free messaging app used worldwide, similar to LINE in Japan. It dominates in Europe, the Middle East, and Africa, and is considered a global standard tool. Registration requires a smartphone number, but even a Japanese number can be used to create an account. In Kenya, WhatsApp isn’t just for private chats—it’s an essential part of business infrastructure.
Of course, formal documents like estimates, contracts, and official paperwork are still handled by email. That hasn’t changed. But for daily consultations, quick checks on-site, and especially situations where “an immediate reply is needed,” WhatsApp is overwhelmingly dominant. In fact, trying to rely solely on email can cause delays or even halt progress when responses don’t come through.

Why WhatsApp Is So Central

Why is chat prioritized so heavily in Kenyan business? The answer lies in local circumstances. Kenya is famous for its widespread use of mobile money (M-PESA), and internet usage is almost entirely smartphone-based. For many staff, a smartphone is their personal, always-available device, while PCs are not guaranteed to be accessible at all times. Once outside the office, many people have limited access to computers, so “internet = smartphone apps.” WhatsApp, which can be used instantly on the go, becomes the most reliable tool. Checking email on a PC feels like a higher hurdle, both physically and mentally.
Improved connectivity also plays a role. Internet access now extends beyond cities into border regions and rural areas. Once connected, you can reach colleagues across Tanzania or Uganda instantly. This “connect anywhere, anytime” feeling is indispensable in logistics and other wide-area businesses.

Speed on the Ground

In fast-moving fieldwork, speed is everything. Transport routes face constant changes—weather, traffic, unexpected troubles. In such cases, the first step is to check the situation via smartphone and decide the next action immediately.
WhatsApp allows intuitive communication with drivers or staff who don’t have PCs, even sharing photos. This agility is a powerful advantage in East African business.

Digitalization Beyond Business

This shift isn’t limited to offices. Safari guides, who once relied only on radios to share “there’s a lion over there,” now often use WhatsApp groups to share location info. Even the Maasai, living traditional lifestyles, are adept at smartphones—using them to coordinate while herding livestock. They may not own PCs, but smartphones are second nature. Visitors expecting “Africa = poor infrastructure” are often pleasantly surprised by this vibrant smartphone society.

Challenges of Chat Culture

Still, relying too heavily on chat brings problems:

• “Where was that conversation?” issue:
  

  Hundreds of messages flow daily, making it hard to track agreements later. Unlike email, there’s no subject line to organize.

• Information stuck with individuals:
  

  Chats are personal exchanges. If someone loses their phone, the history may vanish, risking loss of important context.

• Too many groups:
  

  New groups form for every project, scattering information and complicating management.

The Importance of “Double Effort”

To counter these risks, one key practice is deliberately sending an email for important matters. WhatsApp drives progress, but email prevents “he said, she said” disputes and serves as an official record. A simple follow-up like: “Just as we discussed on WhatsApp, let’s proceed with this schedule. I’ll also send it by email for confirmation.” This small step can prevent major trouble months later. Balancing WhatsApp’s agility with email’s reliability is the secret to working effectively here.

Final Thoughts

Working in Kenya means constantly navigating between the speed of chat and the certainty of email. Projects move forward via WhatsApp, but final confirmation rests with email. This blend of digital dynamism and careful verification is what keeps business moving forward, one step at a time.