WhatsApp contact validation
Reduce wasted sends and protect your Meta sender quality from poor engagement signals. Keep your hard-earned Meta tier and avoid damaging channel health with a simple solution.
Request contact validationKEEP YOUR EXISTING PROVIDER. VALIDATE WITH US. SEND AS YOU NORMALLY WOULD.
Every list has bad numbers — dead, wrong, or not on WhatsApp. You can’t spot them just by looking.
Send to them and WhatsApp counts every failure against your sender score.
We cap how many lists we take each month so every run gets the same hands-on validation. When the slots fill, the next month opens — first come, first served.
Send 100–500 contacts first. Same process, same guarantee — find out how clean your list is before the full run.
✓ META tier protection·✓ Confidential·✓ Accuracy-led validation
Only as long as we need to validate it. We don’t add it to anything else, and we don’t share it. After delivery you can ask for permanent deletion.
Usually within 24–48 hours of receiving the file. Larger lists may take a little longer — we’ll tell you upfront.
No — that remains your responsibility. We validate technical reachability and WhatsApp registration, not consent. See the compliance note below.
We process the list on your instruction. Local privacy and marketing laws still apply to your campaigns: you need valid consent or another lawful basis before sending marketing messages.
CSV or Excel works. We accept common international mobile formats and normalise to E.164.
A cleaned list of validated WhatsApp numbers, plus a short report breaking down duplicates, invalid formats, landlines, and numbers not registered on WhatsApp.
Either. Most clients run a once-off before a launch, then a top-up before each major WhatsApp campaign.
Tell us how many contacts you need validated.
GreenTier helps verify and clean WhatsApp contact data before marketing campaigns. It does not replace opt-in consent, local privacy-law obligations, Meta policy compliance, or responsible campaign management.
You remain responsible for ensuring that every contact has a valid basis for receiving WhatsApp marketing messages before you send.