If you want to send an email inside your workflow process, all you need is the action “Send Email” inside your workflow.
After opening your workflow process inside the “Flow” module, to add the action “Send Email” inside the FLOW section:

Then the following screen will open:

Inside each field we set
Name | Value | Note |
Model | DeepServiceOperation | We set this model to take some variables that we need to send by email |
From | Out | We set the Outgoing mailbox |
To(Variables) | Assigned To (from DeepServiceOperation) | We want to send an email to the Assigned User of our Operation |
Subject | Change Id #(entityId) Approved | We set the Subject of our mail including the ID of the ticket |
Inside the “Input” section we are going to set the Name of the variable, the Type of the Deepser model or entity and the Value of the Deepser model or entity that we want to use to create our body Html message.
Inside the “Body Html” section we are going to create our message that we want to show to the receiver.