How to set the campaign sending hours on WhatsApp
Choose the days and times when WhatsApp campaigns can go out, so you don't bother customers at the wrong time.
1 min readBasicUpdated on November 12, 2026
Where to find it in Cognizy
Video lesson coming soon. For now, follow the steps below.
Sending messages late at night or on Sunday bothers customers and increases the risk of WhatsApp blocking your number. With the sending window, a campaign triggered outside business hours waits and goes out automatically the next time the window opens.
Where to find it in Cognizy
Before you start
- Only the owner and administrators can change the organization's data.
- The window applies to campaigns. Service conversations continue to go out at any time.
Step by step
- Step 1:
Open and scroll down to Campaign sending hours (WhatsApp). Keep the Respect sending window switch on.
- Step 2:
In Allowed days, click the days of the week when campaigns can go out. Selected days appear highlighted.
- Step 3:
Choose the time in Opens at and in Closes at.
- Step 4:
Check the Time zone. For Brasília time, use America/Sao_Paulo.
- Step 5:
Click Save.
How to know it worked
WhatsApp campaigns only go out on the chosen days and times. Anything triggered outside the window waits for the next opening.
If something goes wrong
I triggered a campaign and nothing went out.
Check if the send happened outside the window. In that case, the messages stay waiting and go out automatically when the window opens.
Next step
Turn the weekly email report on or off.
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