The verdict in three sentences
For a Rotterdam distributor of truck and trailer parts selling to haulage firms around the port, a Facebook and Instagram ads campaign that drives buyers to a WhatsApp ordering line needs 2 to 3 weeks before launch (WhatsApp Business catalogue, creative, set-up) and then 3 to 6 weeks of optimisation before cost per conversation settles. With 1,000 to 3,500 EUR of monthly media and 500 to 1,300 EUR of management, 30 to 100 conversations a month with hauliers, workshops and fleet managers is a realistic target. The most common delay is not the ads but the catalogue: part numbers, photos and current prices take longer than anyone expects.
The plan, week by week (2026 market ballpark)
Your buyers are haulage and logistics companies at Maasvlakte, Waalhaven and Botlek, truck workshops across South Holland, and fleet managers running trailers between the port and inland hubs. Many order by phone or WhatsApp, often urgently when a truck is off the road. The campaign has to get them into a conversation where a parts advisor replies fast with a part number and a price, in Dutch or English.
| Week | Phase | Deliverables | Owner | Exit indicator |
|---|---|---|---|---|
| 1 | Catalogue and account | WhatsApp Business set up, 50 to 150 priority SKUs (filters, brake pads, clutches, lighting, engine parts) with photo and price | distributor and agency | catalogue live |
| 2 | Creative and copy | 6 to 10 visuals, 2 short warehouse videos, ads in Dutch and English | agency | creative approved |
| 3 | Set-up | Business Manager, business verification, audiences (hauliers, mechanics, fleet managers), click-to-WhatsApp campaigns | agency | campaigns live |
| 4 to 5 | Learning | first conversations, reply templates, test of 3 to 4 visuals | agency and sales | 15 to 30 cumulative conversations |
| 6 to 9 | Optimisation | pause weak creative, tighten targeting, offers by part family | agency | stable cost per conversation |
| 10 onwards | Cruising speed | fresh creative every 3 to 4 weeks, weekly review | agency | 30 to 100 conversations a month |
The full timeline from signature to steady state is 6 to 9 weeks. An agency promising a final cost per conversation in week two has not accounted for the platform's learning phase.
The most common causes of delay
| Cause | Typical delay | How to avoid it |
|---|---|---|
| Incomplete catalogue (SKUs without price or photo) | 1 to 3 weeks | start with 50 fast-moving SKUs |
| Meta business verification | a few days to 2 weeks depending on documents | have your KvK extract and proof of address ready at signature |
| Ads rejected by the platform | 2 to 5 days | avoid exaggerated claims and text-heavy images |
| Ad payment method issues | 3 to 7 days | business card or invoicing arranged in advance |
| Sales reps replying late on WhatsApp | lost conversations, real cost doubled | reply templates and a 15-minute response goal during business hours |
| Slow internal sign-off | 1 to 2 weeks | one decision maker for creative and prices |
The last point weighs heavily: a conversation left unanswered for an hour is often an order gone to the next distributor down the road. Under GDPR, keep WhatsApp customer data in a business account with a clear privacy notice and limit who on the team can export it.
Budget and results month by month
| Month | Media | Management | Conversations | Media cost per conversation |
|---|---|---|---|---|
| Month 1 (partial launch) | 1,000 EUR | 500 to 1,300 EUR, plus set-up | 15 to 30 | 33 to 67 EUR |
| Month 2 | 1,800 EUR | 500 to 1,300 EUR | 30 to 50 | 36 to 60 EUR |
| Month 3 | 2,500 EUR | 500 to 1,300 EUR | 45 to 80 | 31 to 56 EUR |
| Month 4 onwards | 2,500 to 3,500 EUR | 500 to 1,300 EUR | 60 to 100 | 25 to 58 EUR |
For reference, Kolonell's price for an ad campaign set-up is 152 EUR (100,000 FCFA); media is always paid directly to Meta.
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Illustrative example: Daan, managing director of a 15-person truck parts distributor in Rotterdam, runs 2,100 EUR of media and 900 EUR of management a month from month three. He gets 60 conversations a month, 35 EUR of media each. If 25% turn into orders with an average basket of 600 EUR at a 25% margin, that is 15 orders, 9,000 EUR of sales and 2,250 EUR of margin for 3,000 EUR spent. The margin alone does not yet cover the cost, but repeat orders from hauliers do: a fleet customer reorders several times a year, so Daan tracks 12-month value per new account, not first-order margin.
FAQ
How long until the first WhatsApp conversation?
Usually 2 to 3 weeks after signature, to prepare the catalogue and set up campaigns. First conversations then tend to arrive within 48 hours of launch.
What media budget should a Rotterdam distributor start with?
Between 1,000 and 3,500 EUR a month as a 2026 estimate. Starting at 1,000 EUR lets you test creative before scaling.
What does campaign management cost?
Dutch agencies typically charge 500 to 1,300 EUR a month depending on campaigns and creative volume. Check that a weekly review of conversations is included.
How many conversations can we expect?
Between 30 and 100 a month once campaigns are optimised, after 6 to 9 weeks. The figure depends heavily on catalogue quality and reply speed.
Are Facebook ads enough to be found?
No: many mechanics also search Google and Google Maps for truck parts Rotterdam. Kolonell's Traffic Engine starts with a visibility audit at about 152 EUR, then monthly plans from about 191 to 534 EUR.
Get found by the clients who are looking for you. Start with a visibility audit at about 152 EUR (100,000 FCFA, credited against the 457 EUR set-up if you start within 30 days), then a Traffic Engine plan, Presence at about 191 EUR, Momentum at about 343 EUR or Flood at about 534 EUR a month, so hauliers and workshops find you on Google, with a weekly report on rankings and enquiries: Traffic Engine. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
