Invites that won't open, codes that don't arrive, sign-in sheets that close or hang, sessions that keep ending
The invite link doesn't open the app
Invite links from streamliner.work open Streamliner when you tap them. If one opens a web page instead (the app wasn't installed yet, or you long-pressed it), install Streamliner, then tap the link again. Or copy the link, open Streamliner, and under Join an organization choose Paste, then Join (after the first time, it is under Join an Organization… in the account switcher). If the app says That isn't an invite link or This invite link isn't complete, the link was cut short: open it from the original message, or ask for a new one.
This invite can't be used means it has expired or been used up. Ask for a new one.
The email code doesn't arrive
Check the address on screen, and your junk folder. A code works for 10 minutes; after that, choose Send code again. Use another email starts over if you typed the wrong address. If your invite was sent to one address, sign in with that one.
Sign in with Apple asks for an email code
Your invite went to an address your Apple ID doesn't share (for example, with Hide My Email). Enter the invited address and the code sent there, once; then Sign in with Apple works on its own. No Apple button means your organization signs in another way.
You were signed out
You were signed out of … means your sign-in ended (a long time away, or this device was signed out from another one) and the organization's chats left this device. Sign in again on the next page; no invite needed. After Cancel there, you'll need an invite.
"This organization signs in with … which this version of the app can't do yet"
Your organization uses a sign-in your version of the app does not support. Tell whoever sent the invite. Owners and admins can use Admins and owners: sign in with Apple or email instead.
A system's sign-in page closes or never finishes
The sign-in card's page belongs to that system. If you close it, or it closes itself, the card says Sign-in was canceled or Not signed in — nothing was sent, and nothing happens in the chat. Ask the assistant again to get a fresh card.
If the page finishes but the card does not change, try once more. The server refused to register this app comes from the system itself: tell whoever runs it.
On a Mac, a system's sign-in page may open in your web browser. Finish there, then come back to Streamliner.
You keep being asked to sign in
Some systems end sessions quickly. Each time, the card says your session has ended, and the assistant carries on once you sign in again. On this device (free), the Vault shows how long your last session lasted, a good guide to how long the next will.
If you are asked again and again within minutes, sign out of that system (Vault → Sign-ins → Sign Out on this device), then sign in once more.
A warning about the address
If a page's address isn't secure (not https) or uses look-alike characters, the app says so before you open it. Do not sign in there unless you are sure it is right.
The same manual ships inside the app. This section as Markdown