Say you did it properly. You accepted that Belgium is two markets, you refused to subtitle, you booked two creators and produced two versions. And it still landed flat on both sides.
There is a good chance your Dutch creator was from the Netherlands and your French creator was from France.
Belgium speaks two borrowed languages
This is the part almost nobody says out loud. Belgium does not have two languages of its own. It has local variants of two languages whose centre of gravity sits in a bigger neighbour, and both variants are the minority version of their own language.
The consequence is that Belgium is the only market in Europe that receives imported advertising from two directions at once. Flemish viewers see content made for the Netherlands. Walloon viewers see content made for France. Both understand it perfectly, and both register it as coming from somewhere else.
A brand that hires a creator in Amsterdam and a creator in Lyon has not solved the Belgian problem. It has imported it twice.
What gives away a Dutch video in Flanders
The accent
Northern Dutch and Flemish Dutch are immediately distinguishable to any Belgian ear. It takes about a second, the same margin as the Portuguese case, and it happens before the first meaningful word.
The register
Flemish everyday speech does not match textbook Dutch. There is an intermediate register between dialect and standard that most people actually use, and Flemish media has been comfortable with it for a long time. A creator speaking careful standard Dutch from the Netherlands sounds like a news broadcast, which is a strange thing for a person recommending a face cream.
What gives away a French video in Wallonia
The numbers
Belgian French says septante for seventy and nonante for ninety. France says soixante-dix and quatre-vingt-dix. Prices and quantities appear constantly in product videos, so this one surfaces almost immediately.
The everyday vocabulary
A phone is a gsm, a student room is a kot, and a handful of ordinary words differ enough to place the speaker. None of it blocks comprehension. All of it places the video.
The words that relocate a video
| Common in the Netherlands or France | Common in Belgium | What keeping the foreign form does |
|---|---|---|
| mobieltje | gsm | Places the video in the Netherlands, in the most filmed product category |
| soixante-dix, quatre-vingt-dix | septante, nonante | Places the video in France on the first price mentioned |
| vrachtwagen | camion | A small tell, but a frequent one in logistics and delivery content |
| studentenkamer | kot | Instantly foreign in anything aimed at students |
| standard broadcast Dutch | the everyday intermediate register | Reads as a news bulletin rather than a recommendation |
The pattern is the same in both columns and in both directions: nothing is wrong, everything is slightly displaced.
What this means for a brief
Specify the country, not just the language. A brief that says "Dutch" will get you Dutch. A brief that says "Flemish Dutch, creator based in Flanders" gets you what you actually wanted, and it costs the same.
Do not machine translate between the two versions. The tools default to the dominant variant of each language, which means an automatic translation will confidently hand you exactly the wrong one.
And let each creator write their own words. The fastest way to produce a video that sounds imported is to hand a Flemish creator a script translated from French, because they will read it faithfully and it will sound translated, which it is.
If the budget only covers one version
This is the question the article has been avoiding, and it has an answer.
Pick one community and make that video properly. Do not build a neutral Belgian version, because there is no such thing: an accent that avoids both sides sounds like neither, and a script that dodges septante and gsm reads as written by a committee.
Choose the community where your product already sells better, film it as if the other did not exist, and treat the second version as the next campaign rather than as a compromise inside this one. Half a market reached properly beats a whole market reached approximately.
The test that costs an hour
Show both versions to two people, one from each community, and ask a single question: does this sound like it was made here?
Not "do you understand it", not "do you like it". Comprehension is guaranteed and liking is noise. The only useful question is whether it belongs, and a native ear answers it in a few seconds without needing to explain why.
If either answer is hesitant, you have the information before the campaign runs rather than after.
Why this matters more than it looks
Belgium is a small market, so brands treat these differences as a detail and reuse assets from the bigger neighbour to save a production. It is the most understandable decision in this article and the most expensive one.
The reason it is expensive is that it does not fail loudly. The video is understood, the comments are neutral, the campaign underperforms slightly, and nobody attributes it to a word. Meanwhile the competitor who filmed in Ghent and in Namur is quietly converting better with the same budget.
Keep reading
- The UGC Market in Belgium
- Who Hires UGC Creators in Belgium
- Setting Up as a Self Employed Creator in Belgium
- UGC Creators in Brussels
- The complete UGC guide for Belgium
Frequently asked questions
Can a Dutch creator cover Flanders?
They will be understood and they will sound Dutch. For advertising, that is enough to lose the belonging you paid for.
Is Belgian French really different from French?
Different enough to place the speaker. Numbers do it fastest, and prices appear in almost every product video.
Can I translate one version into the other?
Not automatically. Translation tools default to the dominant variant, which is precisely the one you are trying to avoid.
How do I check before publishing?
Show each version to someone from that community and ask whether it sounds like it was made there.