Read TikTok campaign performance

Reports spend, impressions, reach, clicks, conversions and the TikTok video metrics — 2-second and 6-second views, completion, average watch time — per campaign, and compares every number with the equally long period immediately before it. Use when: the user asks how TikTok is doing, whether something is working, or what changed. Scope it with campaign_id; without it you get every campaign. Do not use it for a brief or a report to keep or forward: that is generate_report_now (monitoring router), which covers every connected account and saves a page. Do not read a single day and call it a trend — TikTok's daily numbers swing hard, and video metrics keep settling for hours, which is why the presets end yesterday. Prefer last_7_days or longer before recommending anything. Returns three ratios worth more than the rest on this platform: hook rate (2-second views ÷ impressions) says whether the first frame stopped the scroll, hold rate (6-second views ÷ impressions) whether people stayed for the offer, and completion rate whether the edit held. A low hook rate is a creative problem and no bid change will fix it — say that plainly rather than suggesting a budget move. A dash in the change column means the previous period was zero, not that nothing changed. If everything is zero, check tiktok_list_ads for a rejection before concluding the ads perform badly.