Wait
In order to PUBLISH workflows, you will need to establish a workflow trigger and a workflow action. Without both, you will only be able to save the workflow, not publish it.
The ‘Wait’ step is a beneficial event that can be used in workflows.
Wait For
There are different Wait Events that can be used depending on your desired outcome**;**
CRM Events:
Time-based:
It holds a contact for a specific time until a condition exists, or until the contact replies.
Time Delayed
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Wait