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Error: Registration server returned 'Error while deleting the system ' (500)

This document (7023306) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 12 Service Pack 2 (SLES 12 SP2)
SUSE Linux Enterprise Server 12 Service Pack 3 (SLES 12 SP3)


A system is registered against an SMT Server. Trying to de-register the server with

SUSEConnect --de-register

returns the following error:

Error: Registration server returned 'Error while deleting the system ' (500)


On the SMT server check /etc/smt.conf for the Mirror credentials found under:


Compare these with the ones found in SUSE Customer Center by selecting your Organization and then the Proxy Tab.
The Mirror credentials are in the right upper corner.



This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7023306
  • Creation Date: 27-Aug-2018
  • Modified Date:03-Mar-2020
    • Subscription Management Tool
    • SUSE Linux Enterprise Server

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