SAP Knowledge Base Article - Preview

2887153 - Error in phase PREP_INSTALL/SUBMOD_PREP_INSTALL/INIT_SHD Forbidden instance number must not be used


  • While performing an upgrade using the Software Update Manager (SUM) an error occurs in phase PREP_INSTALL/SUBMOD_PREP_INSTALL/INITSHD
  • The error message displayed in the SUM GUI is similar to : "Forbidden instance number XX must not be used."
  • In the INITSHD.LOG an entry similar to :
    1 ETQ399 Found usable instance number <XX>.
    4 ETQ399 Starting dialog 'ShadowInstNr' at <DATE>.
    4EETQ399 Dialogue validator 'ShdInstNrVal?idator' failed with 'Forbidden instance number <XX> must not be used.



SAP S/4HANA 1610


Forbiden , KBA , BC-UPG-PRP , Upgrade Preparation , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.