WhatsApp has 2 billion users and a 90%+ message open rate. For fitness businesses with international members, younger demographics, or markets where WhatsApp is the default messaging app, it outperforms SMS and email combined. A Fitness Virtual Assistant can run the entire WhatsApp broadcast operation from a WhatsApp Business account.
For where messaging fits in the full VA role, see our Fitness VA tasks list.
WhatsApp Business setup
The VA sets up and manages WhatsApp Business (not personal WhatsApp):
- WhatsApp Business App. Free. Good for businesses with under 500 contacts. Manual broadcasts, basic labels, quick replies.
- WhatsApp Business API. For 500+ contacts. Requires a provider (Twilio, MessageBird, WATI). Allows automated messaging, CRM integration, and analytics. $50-200/month depending on volume.
- Business profile. Complete with address, hours, website, and a clear description. This builds trust when prospects see the business for the first time.
- Catalog. List services (memberships, PT packages, class packs) with prices and descriptions. Members can browse and inquire directly.
Most gyms under 500 members use the free Business App. Scale to the API when volume demands it.
Broadcast lists vs groups
The VA must understand the difference:
- Broadcast lists. One-to-many messages that arrive as individual chats. Recipients don't see each other. Maximum 256 contacts per list. Best for marketing messages, announcements, and promotions.
- Groups. Multi-way conversation where everyone sees every message. Best for specific cohorts: challenge groups, accountability pods, class communities.
The VA uses broadcast lists for marketing. Groups are for community building with clear rules and moderation.
Building the broadcast list
- Opt-in required. Contacts must save the business number AND send a message first. WhatsApp only delivers broadcasts to contacts who have the business number saved.
- Collection method. During signup, the VA sends a welcome message from the business number. Member saves the number and replies. Now they receive broadcasts.
- Segmentation. Create separate broadcast lists by: membership type (group, PT, online), engagement level (active, at-risk, lapsed), interest (yoga, HIIT, strength).
- List hygiene. Monthly audit: remove contacts who haven't opened the last 5 messages (check read receipts).
Building the list takes effort upfront. The VA should aim to have 60-70% of active members on the broadcast list within 90 days.
Message templates
Five broadcast types the VA sends:
1. Weekly schedule update
Sent Sunday evening. "This week at [Gym]: New Monday 6am Strength class added. Wednesday yoga moved to 7pm. Saturday open gym 8-12. See you there."
2. Flash offers
Sent mid-week. "Member-only: 20% off PT packages booked this week. Reply HERE to grab a spot. Only 5 available." Urgency and scarcity work on WhatsApp.
3. Event invites
Sent 7 days and 1 day before. "Free Saturday workshop: Nutrition for busy professionals. 10am-11:30am. Reply YES to reserve your spot."
4. Motivation and tips
Sent once per week. Quick workout tip, nutrition fact, or member spotlight. Keep it under 3 sentences plus an image or short video.
5. Re-engagement
Sent to lapsed members. "Hey [Name], we noticed you haven't been in for a while. Your coach [Name] saved your favorite [time] spot. Come back this week - first class on us."
Sending cadence
- Maximum 3-4 broadcasts per week. More than that and members mute or block.
- Best times. 7-9am (before work), 12-1pm (lunch), 5-7pm (pre-evening workout). Test what works for your audience.
- Mix content types. Never send 3 promotional messages in a row. Alternate: value, social proof, promotion, value.
- Avoid weekends for promotional messages unless it's an event reminder.
The VA schedules broadcasts in advance and monitors read receipts and replies within 2 hours.
Handling replies
Broadcasts generate replies. The VA triages:
- Questions about classes or schedule. VA responds directly with details and booking link.
- Interest in offers. VA qualifies and books the prospect or forwards to the coach.
- Personal or sensitive topics. VA escalates to the coach within 4 hours.
- Spam or irrelevant replies. VA archives without response.
Response time matters. WhatsApp creates an expectation of immediate conversation. The VA should respond within 30 minutes during business hours.
Compliance and etiquette
- No purchased lists. Only message contacts who opted in and saved your number.
- Include opt-out. End every broadcast with "Reply STOP to unsubscribe from updates."
- No spamming. WhatsApp bans accounts reported for spam. Keep message frequency reasonable and content valuable.
- Respect quiet hours. No messages before 8am or after 9pm local time.
- No sensitive data. Never send health information, payment details, or personally identifiable information via WhatsApp broadcast.
Metrics to track
- Read rate. WhatsApp shows blue check marks. Target: 70%+. Below 50% means contacts aren't opening or have muted.
- Reply rate. Target: 5-15% for promotional broadcasts, 20%+ for engagement content.
- Block/unsubscribe rate. Target: below 1% per broadcast. Above 3% means messaging is too frequent or irrelevant.
- Conversion rate. Bookings, purchases, or visits attributed to WhatsApp messages. Track with unique codes or direct reply tracking.
Common mistakes
- Treating WhatsApp like email. Long messages with multiple CTAs. Keep it short - 2-4 sentences max.
- No segmentation. Same message to everyone. New trial members don't need the same content as 2-year veterans.
- Ignoring replies. WhatsApp is conversational. Not responding to replies defeats the purpose.
- Broadcasting without opt-in. Messages won't deliver to contacts who haven't saved your number, and forced adds lead to spam reports.
- No media variety. Text-only broadcasts get stale. Mix in images, short videos, and voice notes.
For pricing on a VA who manages WhatsApp, see fitness VA cost.
Frequently asked questions
Can I use WhatsApp for marketing in the US?
Yes. WhatsApp usage in the US is growing, especially among younger demographics and international communities. But SMS still has wider reach domestically. Many gyms run both.
What's the difference between WhatsApp Business App and API?
The free Business App is manual - you create broadcast lists and send messages yourself. The API connects to CRM tools and allows automation, templates, and higher volume. Most gyms start with the app and upgrade when they pass 500 contacts.
How many people can receive a single broadcast?
256 per broadcast list on the Business App. Create multiple lists for larger audiences. The API has no practical limit.
Should the coach or VA manage the WhatsApp account?
The VA manages day-to-day: scheduling broadcasts, responding to routine replies, maintaining lists. The coach only engages for personal conversations or sensitive topics.
Can WhatsApp broadcasts include images and video?
Yes. You can send text, images, videos (up to 16MB), documents, and voice notes. Short video clips (15-30 seconds) of workouts or gym events perform best.