If you're sending SMS messages with ActiveCampaign, you'll want to limit the time window in which contacts can receive messages so they don't receive them overnight.
This can be achieved with a simple conditional wait step.
- In ActiveCampaign automations, select "Add a wait condition"
- Select "Wait until specific conditions are met"
- Add a requirement to wait until after 9am (or whatever time you'd like) of the recipient's time zone
- Add a "AND" statement to wait until before 8pm (or whatever end time you'd like) of the recipients time zone
Here is an example: