Constraints to plan around when you build a dataset.
A query must match at least 10 posts in the last 30 days of live data, or the order is rejected (API error code 1). Broaden the query if you hit this.
4).5).The API delivers NDJSON only - requesting json or xml is rejected (error 33).
Orders are processed one at a time, and pending orders hold their estimated credits. A new order that would exceed your remaining balance is rejected until the pending one completes (error 11).
Enrichment filters (entities, sentiment, social signals) only exist from a certain date - see Building Queries. Queries using performance_score or sentiment with a timeframe before their start date are rejected (errors 7, 8).