Influencer whitelisting CPM vs prospecting CPM: labelled scenario sheet
A synthetic worksheet compares whitelist Spark delivery against open prospecting at labelled CPMs. Reach caps are scenario inputs—not published network averages.
Whitelisting a creator post as a Spark Ad can look efficient until frequency and reach saturate.
Define the calculation before using it
Enter whitelist CPM, prospecting CPM, budgets and optional reach-cap multiplier. Compare impressions and a simple cost-per-mille efficiency ratio. CPMs are illustrative.
Work through the synthetic example
| Input | Synthetic value |
|---|---|
| Whitelist CPM | 8.00 |
| Prospecting CPM | 12.00 |
| Budget each | 20,000 |
| Whitelist reach-cap factor | 0.70 (impressions achievable vs uncapped) |
| Output | Whitelist | Prospecting |
|---|---|---|
| Uncapped impressions | 2,500,000 | 1,666,667 |
| Reach-capped impressions | 1,750,000 | 1,666,667 |
| Effective CPM after cap | 11.43 | 12.00 |
Spark Ads document authorised organic-post ads; they do not publish a whitelist-vs-prospecting CPM index.
Facts versus limits
| Field | Evidence or limit |
|---|---|
| Spark format | TikTok primary |
| CPM values | Illustrative |
| Actual account reach caps | Unknown here |
