nicko
09/29/2025, 2:30 PMVapi Support Bot
09/29/2025, 2:32 PMnumber column (all lowercase), formatted in E.164 (e.g., +15403541390), and that there are no extra spaces, blank rows, or duplicate headers. Also, ensure any additional columns match the variable names used in your workflow and do not contain spaces.
Example CSV:
number,name
+15403541390,John
If the issue persists, try re-saving the CSV with UTF-8 encoding and re-uploading it.
Source:
- [Outbound Campaigns Overview](https://docs.vapi.ai/outbound-campaigns/overview)Vercel
09/30/2025, 6:16 AMnicko
10/01/2025, 4:42 AMnicko
10/01/2025, 4:43 AMVercel
10/01/2025, 9:18 AMChiranjeet Mishra
10/01/2025, 6:21 PM