Why did Findymail find fewer phone numbers than usual?
The Findymail help pages give 3 common reasons. The first to rule out: Findymail does not return phone numbers for contacts in the EU, so lists with more European contacts find fewer numbers.
What causes it?
Findymail does not return phone numbers for contacts in the EU, so lists with more European contacts find fewer numbers.
In the Findymail help:
Due to GDPR, phone numbers are only available for non-EU contacts.
Phone Finder: Find B2B Phone Numbers for Decision-Makers | Findymail, read 2026-11-12.A contact without a social profile link cannot be looked up for a phone number.
In the Findymail help:
Phone finding requires social profile URLs.
Phone Finder: Find B2B Phone Numbers for Decision-Makers | Findymail, read 2026-11-12.Through the API, phone finding covers US numbers, so contacts elsewhere can come back without one.
In the Findymail help:
Only available for US numbers.
Findymail API documentation, read 2026-11-12.
How do I check it myself?
Check that the file you uploaded holds a social profile link for each contact.
In the Findymail help:
Upload a CSV or XLS file with social profile URLs.
Phone Finder: Find B2B Phone Numbers for Decision-Makers | Findymail, read 2026-11-12.Count the contacts that came back empty to see how many had no number found, rather than a failed request.
In the Findymail help:
The phone number in E.164 format (e.g. +1234567890), or null if not found.
Findymail API documentation, read 2026-11-12.
How does Findymail work with Feder?
- Connect Findymail to Feder and it joins your Interest apps.
- When you connect Findymail, Feder checks the connection straight away and shows Connected only when that check passes. If a reading cannot be taken later, Feder shows it as not read, never as zero.
Some numbers are too quiet to judge daily, such as a form filled in a few times a week. Until there is enough of your own history to judge a change, Feder says it is still learning and scores nothing, rather than guessing.
See whether you can trust the numbers in Findymail, one of your Interest apps. Feder only reads. It never changes anything in Findymail.
What else goes wrong with these numbers?
- Why did Findymail find fewer emails than usual?Findymail
- Why are fewer of my emails passing Findymail verification?Findymail
- Why did Google Analytics stop collecting data?Google Analytics
- Why aren't my key events showing in Google Analytics?Google Analytics
- Why does Google Analytics show (not set)?Google Analytics
See every question.
Where do these answers come from?
Every cause and check on this page comes from the Findymail help pages, quoted above with the date we read them. Last reviewed 2026-11-12. We read them again by 2027-11-12. If one changes, this page changes or comes down.