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Fix WhatsApp and template problems: every error and its fix
One table of everything you might see in WhatsApp Web and WhatsApp Cloud sessions, groups and templates, with the reason and the fix.
Connecting and sessions
What you see
Why
What to do
QR Code Expired
The code only lasts a short time.
Press Refresh QR Code. See Connect a WhatsApp number by scanning a QR code.
After scanning, the session goes back to Scan QR with a “Number already linked to…” notification
The number is in another session.
A Wrong number scanned notification after scanning
The session was linked before to another number.
Scan with the original number, or create a new session.
Plan limit reached
Your connected sessions equal your plan’s limit.
“Pairing code not available — use the QR code”
WhatsApp didn’t issue a code.
Scan the QR code.
“This session isn’t waiting to be linked”
The session isn’t in Scan QR.
Start it and wait for the code. Link with an 8-character code instead of scanning.
The status is Failed or Stopped
The phone lost its connection, the device was removed, or Meta suspended the account.
WhatsApp did not confirm the delete — try again
The server didn’t respond.
Try again. Delete a session without losing its chats.
A teammate can’t see the session
They aren’t a member of it, or their level is Denied.
Chats arrive without records
No unit is linked.
The message box is disabled
The chat’s session was deleted.
Start a chat from a connected session.
Sending on WhatsApp Web
What you see
Why
What to do
Messages to new numbers fail while the session is connected
A WhatsApp quota or lock.
Messages are slow to go out
Sending is slowed down to protect the number.
The edit button is missing
More than 15 minutes have passed, or the channel isn’t WhatsApp Web.
Send a correction.
“Can’t delete the message — WhatsApp allows deleting for everyone within 60 hours”
The message is older than 60 hours.
It can’t be deleted on the client’s side.
Groups
What you see
Why
What to do
“This WhatsApp session was started without group storage”
The session started without storing groups.
Restart it, then import again. Turn on WhatsApp groups and bring them into Cortex Chat.
“WhatsApp is limiting requests from this number”
Too many requests.
Wait a few minutes.
“WhatsApp did not answer in time” / “The WhatsApp service is unavailable right now”
The server didn’t respond.
Try again later.
“This WhatsApp number isn’t a group admin”
The session’s number isn’t an admin.
Ask for it to be made one. Add, remove and promote group members.
“This WhatsApp number is no longer in this group”
The number was removed.
The group is read-only.
“Groups are turned off for this WhatsApp number”
The option is off for this number.
Turn on Group chats in Session features.
“This chat is not a group”
A group action on a one-to-one chat.
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Calls
What you see
Why
What to do
The automatic reply isn’t sent after hours
No calendar is in effect.
WhatsApp Cloud
What you see
Why
What to do
The pop-up window doesn’t appear
The browser blocks it.
“The 24-hour window has ended”
The client hasn’t written for a day.
“This number isn’t registered on WhatsApp”
A landline or wrong number.
Correct the number. Delivery ticks, and why WhatsApp messages fail.
“The client stopped marketing messages”
The client’s choice.
A billing problem notification on the account
A payment problem at Meta.
Fix it in Meta Business.
“Interactive message type not supported” / “Interactive message not valid”
The channel doesn’t support the type, or a limit was passed.
“No number is linked to the WhatsApp Business account yet”
Coexistence setup isn’t finished.
Templates
What you see
Why
What to do
“The template was created, but WhatsApp didn’t accept it”
Meta refused to receive it.
The template is Rejected
The content broke Meta’s rules.
The template is stuck at Pending
Meta hasn’t finished its review, or its update didn’t reach Corteksa.
A variable is refused when saving
The field type doesn’t print as text.
Sending fails because of an empty variable
The record’s field is empty.
“This template has a Copy offer code button”
You didn’t enter the offer code.
“The authentication template needs the code”
You didn’t enter the code.
“One of the template’s values isn’t allowed”
A value has a line break or too many spaces.
Clean up the field in the record.
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