My messages are delivered with a significant delay

Possible causes

• Temporary network congestion at the receiving operator, particularly during national traffic peaks (e.g. before holidays, major events)
• High sending volume exceeding your configured rate, creating a platform-side queue
• Recipient's terminal turned off or out of coverage at the time of sending — the message is then delivered as soon as the terminal reconnects, within the limit of the message validity period
• Content triggering more in-depth anti-spam inspection on the operator side

What to do

Check the throughput configured on your account (visible in Settings > API > Limits) and consider requesting an increase if your campaigns regularly exceed this threshold. For isolated and repeated cases to the same recipient, contact support with the history of the message_id concerned.