SAP Knowledge Base Article - Public

2660904 - Error: Sender domain in isn't allowed - S/4HANA Cloud


An email output is set up, however, it fails with message "Error: Sender domain in isn't allowed".


S/4HANA Cloud

Reproducing the Issue

  1. Create a purchase order with an email output.
  2. The email output isn't sent out, it fails with message "Error: Sender domain in isn't allowed".


The domain in the sender email address isn't maintained as an allowed sender domain.


  1. Please open "configure your solution" in app "manage your solution", and input search text "domain".
  2. Open the selected SSCUI of Output Management, and then open the configuration step "Define Allowed Email Sender Domains"(configuration step ID 101313).
  3. Input the correct domain name of the sender email address in the configuration.


  • would allow all email addresses in this domain such as
  • * would allow all email addresses in subdomains such as or

P.S: In case email address from error message is '': on SAP S/4HANA Cloud 2108 checks were introduced to prevent the usage of SAP domains ( or in the configuration step 'Define Email Sender Domain' of Output Parameter Determination.

See Also

1LQ scope item


sender domain, domain, OM: Sender Domains, output, SSCUI, output management, SSCUI 101311, 101311, 101313, Default Sender Address , KBA , CA-GTF-OC , SAP S/4HANA output management , Problem


SAP S/4HANA Cloud Public Edition all versions ; SAP S/4HANA Cloud all versions