Issue with Sending Email Notifications for PO Approval Workflow in SAP S/4HANA Public Cloud

[youssef_hassnien]

I created a PO approval workflow and it works fine.
The client then requested email notifications for three cases:

• PO approved

• PO rejected

• PO on hold

I configured Email Templates, the Notifications section in the workflow, and assigned the notifications to the relevant roles/users.
However, no emails are being sent.

Is there any additional configuration needed in CBC, or any prerequisite activation before workflow email notifications can work?

Any advice would be helpful. 

[OwenLiu]

We’ve marked the answer as the accepted solution to assist you. If you have more questions, you can un-accept it whenever needed.

[dawid90 · Accepted solution]

Dear @youssef_hassnien,

Below checklist that usually fixes it:

1. Make sure outbound email is actually allowed in CBC

• Define Allowed Email Receiver Domains For Email Outbound (101312)

SAP Note below:

https://userapps.support.sap.com/sap/support/knowledge/en/3407435

• Define Allowed Email Sender Domains For Email Outbound (101313)

SAP Note below:

https://userapps.support.sap.com/sap/support/knowledge/en/2660904

• Define Default Email Sender Address For Email Outbound (101311) Some scenarios fail or behave unexpectedly if a sender can’t be determined

Important. These email outbound configurations are non-transportable and must be maintained in each tenant/system

SAP Note below:

https://userapps.support.sap.com/sap/support/knowledge/en/3556392

2. DKIM is mandatory in Public Cloud

1. Create an SAP support request (component XX-S4C-OPR-SRV) to request DKIM activation
2. SAP provides DKIM details
3. You update your DNS
4. SAP validates/activates

SAP Note below:

https://userapps.support.sap.com/sap/support/knowledge/en/3223182

3. Publish SPF. Even if your email shows as Completed/Sent, delivery can fail because:

• SPF not published, and/or
• DKIM not set up

SAP Note below:

https://userapps.support.sap.com/sap/support/knowledge/en/3274509

4. Use Monitor Email Transmissions app to see what’s happening

SAP Note below:

https://userapps.support.sap.com/sap/support/knowledge/en/3274509

https://userapps.support.sap.com/sap/support/knowledge/en/3265907

Best Regards,

Dawid