What do the four states of "Sender, Waiting to Send, Pending Approval and Failed to Send" mean respectively?

Sender: The short message is being submitted to the gateway server, so the user should not send it again. Waiting to be sent: it means that the short message is waiting in line to be sent, or the short message is "sent regularly" by the user, and it has not yet reached the sending time. Pending approval: the content sent by form users contains key sensitive filter words that need to be approved, and it can only be passed after manual approval by customer service personnel. Failed to send: it means that the short message was not sent, and the platform does not charge at this time. Users can click the "resend" button to continue submitting and sending. Thank you for your interest in telecom products. I wish you a happy life. If the above information can't solve your problem, you can also log in to Guangdong Telecom Mobile Mall () to seek help from online customer service, which is available 7X24 hours a day!