Campaign Scheduling
Send Interval
Configure the time gap between each SMS in the campaign. The minimum recommended interval is 35 seconds. This prevents your phone carrier from flagging your number as spam and avoids Android SMS rate limits. Longer intervals (60+ seconds) are safer for large campaigns.
Time Window
Set the hours during which the campaign can send messages. For example, 9:00 to 18:00 ensures no messages are sent at night. The time window uses the timezone configured in your SIMtrix dashboard. Messages outside the window are held in queue until the next valid time.
Day Selection
Choose which days of the week the campaign should run. For business campaigns, you might select Monday through Friday only. Weekend-only campaigns are also possible for retail or event promotions.
Queue Behavior
Messages are queued on the SIMtrix server and delivered one at a time to your Android phone. If the phone goes offline, the queue pauses and resumes when the phone reconnects. No messages are lost.