How To Fix WSTI_MLT_INV_DOC000 - Set exactly one Customizing schema as standard

SAP Error Message - Details

• Message type: E = Error

• Message class: WSTI_MLT_INV_DOC - Message object for WSTI_MLT_INV_DOC

• Message number: 000

• Message text: Set exactly one Customizing schema as standard

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WSTI_MLT_INV_DOC000 - Set exactly one Customizing schema as standard ?

  SAP Error Message:
  
  WSTI_MLT_INV_DOC000 Set exactly one Customizing schema as standard
  
  Cause:
  This error occurs when there is an issue with the configuration of the Customizing schema in the SAP system, specifically in the context of SAP Solution Manager or SAP Transport Management System (TMS). The system expects exactly one Customizing schema to be set as the standard (default) schema, but:
  
  Either no schema is set as standard, or  
  More than one schema is set as standard.
  
  This inconsistency causes the system to throw the error because it cannot determine which schema to use as the default for transport or customizing activities.
  
  Where does this happen?
  
  Typically during transport import or export activities in Solution Manager or TMS.
  When managing or configuring transport routes and schemas.
  When working with CTS+ or ChaRM (Change Request Management) customizing.
  
  
  Solution:
  
  
  Check the Customizing Schemas:
  
  Go to the transaction or customizing node where the Customizing schemas are maintained.
  For example, in Solution Manager, you can check under:
  
  SPRO ? Transport Management ? Customizing Schema settings.
  Or use transaction /nSTMS and navigate to the relevant customizing schema settings.
  
  
  
  
  
  Set Exactly One Schema as Standard:
  
  Identify the list of Customizing schemas.
  Ensure that exactly one schema is marked as the standard (default).
  If none is set, select one and mark it as standard.
  If multiple are set as standard, deselect the standard flag from all but one.
  
  
  
  Save the Configuration:
  
  After adjusting the standard flag, save your changes.
  
  
  
  Re-run the Process:
  
  Retry the transport or customizing activity that triggered the error.
  
  
  
  
  Additional Information:
  
  The Customizing schema defines how customizing objects are grouped and transported.
  Having a clear and unique standard schema is essential for consistent transport behavior.
  This error is a safeguard to prevent ambiguity in transport processing.
  If you are unsure which schema to set as standard, consult your system's transport strategy or your Basis/Transport Administrator.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error Cause
  No or multiple Customizing schemas set as standard
  
  
  Impact
  System cannot determine default schema for transport
  
  
  Solution
  Set exactly one Customizing schema as standard in customizing
  
  
  Transaction
  /nSTMS, SPRO (Transport Management settings)
  
  
  
  
  If you need specific steps for your SAP version or environment, please provide more details about where and when the error occurs.