If your workflow emails didn’t send at the expected time, a possible reason is:
The “Customer Follow up” workflow is waiting for invoices to be available before it can proceed.
This is expected behavior in Kolleno.
What This Means
In workflows where emails are part of a bulk communication, Kolleno checks if the customer has relevant invoices before sending. If no qualifying invoices are found at the time of execution, the email node does not send and waits until invoices become available.
What You Can Do
Check if the customers in the workflow have invoices at the time the workflow was triggered.
Review the workflow structure: is the email node directly dependent on invoice availability?
If you're unsure, contact Kolleno Support with the workflow link.