SAP Knowledge Base Article - Public

3320469 - Error 'Logon Error Message' When Executing Inbound Payload to SAP Business ByDesign


When you execute a payload from third party tools such SOAP UI or POSTMAN, the tool throws the below error messages.

HTTP/1.1 401 Unauthorized

content-type: text/html; charset=utf-8

sap-system: XYZ

www-authenticate: Bask realm=“SAP NetWeaver Application Server (XYZ/ABC](alias)*

strict-transport-security: max-age=31536000; indudeSubDomains

set-cookie: sap-usercontext=sapdient=ABC; path=/;HttpOnly;Secure

<html> <head><title>Logon Error Message</title><META http-equiv=“Content-Type* content=*text/html;charset=UTF-8" >< style type=“text/css*>body

Where XYZ is the System ID and ABC is Tenant ID.


SAP Business ByDesign

Reproducing the Issue

A Communication Arrangement Setup is in place for receiving Inbound messages from a Third party application or Tool.

When a payload is executed from an application or tool using Basic Authentication with the credentials of a Communication User (a user maintained in the Communication Arrangement), the error message mentioned above is displayed.


The Communication user is either User Locked or Password Locked.


  1. Go to Application and User Management work center.
  2. Go to Support and Technical Users view.
  3. Search the Communication User and highlight.
  4. Select Unlock button.

Execute the payload again with the correct password.


Logon Error Message, 401, unauthorized, communication, soap, postman, user, byd , KBA , logon error message, 401, unauthorized, , AP-RC-CEC-B2B , ByD On-Demand Cloud-Process Integration B2B , Problem


SAP Business ByDesign all versions