Almost always it's one of three things: the person hasn't accepted the invite yet, they're signed in with a different email than the one you invited, or they only have Viewer access. Editing requires all of: an accepted invite, the exact invited email, and a Contributor or Full Access level.
Check these in order
Did they accept the invite? Editing only starts once they open the invitation and accept it. A pending (un-accepted) invite grants no access.
Are they using the exact email you invited? Access is tied to that specific email address. If they sign in with a different Google, Facebook, or magic-link email, Wishpicks won't recognize the invite. Re-invite the email they actually sign in with if needed.
Are they signed in at all? Editing requires a signed-in Wishpicks account. A logged-out visitor can only view.
What access level did they get? A Viewer can never edit — only Contributor or Full Access can change wishes. If they need to edit, re-invite them at a higher level.
Are they trying to change someone else's wish? A Contributor can only edit or remove the wishes they added themselves. To let them manage all wishes, give them Full Access.
Are they trying to rename or delete the list? Only the Owner and Full Access people can do that — a Contributor can't, even for wishes.
Still not working?
You do not need to make the wishlist private to fix editing — visibility and edit access are separate. Making a public list private won't grant anyone editing rights; only an accepted email invite does.
If the invitation didn't arrive, ask them to check spam, and confirm you entered the right email. Wishpicks does email these invitations, and you can re-send one: open the person's entry in your access list and choose Resend invitation.
Age isn't the problem. Invites don't expire, so an older invitation is still valid and there's no need to start over just because a lot of time passed. What can occasionally block a re-invite is spam prevention — the same email can be invited to one wishlist at most twice in 5 minutes, three times a day. If that happens, wait a bit and resend.
New to Wishpicks? They can sign in with Google, Facebook, or an emailed magic link using the invited email, then accept. Still stuck after all these checks? See "How do I invite another person to edit my wishlist?" to re-send the invite, or contact support — note that we reply on business days.