How to verify members before admitting them to a WhatsApp group

A WhatsApp invite link works for anyone who has it. Links get forwarded, posted in public directories and scraped, and a group that grows through its link alone ends up with people nobody on the committee recognises. Some are simply non-members. Some are not people at all: America’s investor watchdog, FINRA, warns that scammers add people “to encrypted group chats directly without any prior contact” (FINRA).

Membership also changes under your feet. Associations that sell annual memberships see a large share lapse at renewal. APPNA’s membership newsletter reported 4,884 members at the end of 2024 and 2,620 on 1 January 2025, because “at the beginning of the year, only lifetime members are active” (SUNO APPNA). A group that was all members in December is not all members in February.

WhatsApp’s own guidance for community admins is to review new participants and to “keep an eye on new members and remove anyone that should not be there” (WhatsApp). The rest of this guide is how to do that without it becoming someone’s second job.

Open the group, tap its name to open Group info, then Group settings, and turn on Approve new members. The setting is off by default (WhatsApp Help Center).

With it on, anyone who opens the invite link sees that an admin must approve their request, and taps Request to join instead of joining. Admins are notified, and the requests wait on the Pending requests screen in Group info until someone approves or rejects them.

Turn it on in every group that should be members-only, including each group inside a community. One open group is enough to undo the rest.

Pick the one thing your member platform can confirm, and ask everyone for the same thing. For most associations that is the email address the person registered with. Membership numbers work too, if members know theirs.

• ·Good proof: an email or membership number that appears in an export of your currently active members.
• ·Not proof:a WhatsApp profile name or photo, which the requester chooses; a name alone, which two members can share; “so-and-so told me to join”.

Check against active members, not everyone who ever signed up. On many member platforms an account can exist before it is approved or paid, so a person can have an account and still not be a member.

Message each new requester once, with everything they need to answer. Keep it short and say why you are asking, so a real member does not read it as suspicion.

Put the same instructions in the group description, so people who read it before requesting arrive with the answer ready.

Export your active members from the member platform and match each requester against it exactly: the email lowercased and trimmed, or the phone number in international format. Do not guess. A near-match (a different domain, a transposed digit) stays pending, and you ask again.

Keep the export fresh. Weekly is enough for most groups; daily during a membership drive or before a conference, when requests arrive in bursts.

Most unmatched requests are real members who have not finished activating their account. A reminder after two days catches most of them. After a week, reject the request and tell them they are welcome to ask again once they have activated.

Then approve everyone the log says is verified, and reject the requests it says have lapsed. That tap is the only step that has to happen inside WhatsApp.

Join approval only guards the door. Once a year, after renewals close, compare the group’s members against the new active list and message anyone who has not renewed before removing them. Removing a member without warning costs more goodwill than the check saves.

Avently runs Steps 3 to 5 over WhatsApp, and keeps the log for you. The admin still approves each request in WhatsApp, because no tool can admit someone to a group you run from your own phone.

1. Step 01

   The applicant messages a keyword

   You put a link in the group description and in your reply to join requests. It opens WhatsApp with a message like “JOIN RADIOLOGY” ready to send. Because the applicant writes first, this works for members on US and Canadian numbers alike.

2. Step 02

   Avently sends your instructions and asks for their email

   The applicant gets your activation instructions and link, and replies with the email they will activate with. They appear on the Applicants tab of your members sheet within a minute.

3. Step 03

   Avently matches them against your Activated tab

   You paste your active-member export into the Activated tab. Avently matches each applicant by email or phone number, tells the ones it finds that they’re verified, and marks them verified for you.

4. Step 04

   Avently reminds the rest, then closes them

   Anyone not yet matched gets a reminder every two days, and is marked lapsed after seven. You approve the verified requests and reject the lapsed ones. People already waiting from before can be typed into a Waiting tab, and Avently messages them too.

For event invitations to the same members, see how to collect RSVPs over WhatsApp.