Thanks for the question, @TheoMMR.
The behavior you are trying to target is US-based ("country_code": "US"):
$ twurl -H ads-api.twitter.com "/3/targeting_criteria/behaviors?behavior_ids=pqgs"
{
"data": [
{
"name": "Walt Disney",
"targetable_types": [
"BEHAVIOR",
"NEGATIVE_BEHAVIOR",
"BEHAVIOR_LOOKALIKE_EXPANDED"
],
"country_code": "US",
"id": "pqgs",
"partner_source": "Datalogix",
"behavior_taxonomy_id": "2b",
"audience_size": 2494710
}
],
"next_cursor": null,
"request": {
"params": {
"behavior_ids": [
"pqgs"
]
}
}
}
In January, we announced a few validation changes.
It looks like the line item is targeting locations in Great Britain while the behavior is for the US, which is why you see the error.
No answer since 11 days.
This was originally posted in the wrong category, so we didn’t get a notification. Thanks for following up!