How To Fix /SCMB/SCHED_CORE_CUS007 - &1 may only be used once in schema &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMB/SCHED_CORE_CUS -

• Message number: 007

• Message text: &1 may only be used once in schema &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMB/SCHED_CORE_CUS007 - &1 may only be used once in schema &2 ?

  The SAP error message /SCMB/SCHED_CORE_CUS007 &1 may only be used once in schema &2 typically occurs in the context of SAP Advanced Planning and Optimization (APO) or Supply Chain Management (SCM) when there is an issue with the configuration of a scheduling schema. This error indicates that a specific scheduling element (like a resource or a process) is being referenced multiple times in a schema where it is only allowed to be used once.
  Cause:
  
  Duplicate Entries: The most common cause of this error is that the same scheduling element (e.g., a resource or a specific operation) has been added more than once to the same scheduling schema.
  Schema Configuration: The configuration of the scheduling schema may not adhere to the rules defined in the system, which restricts the use of certain elements to a single instance within that schema.
  
  Solution:
  
  
  Check the Schema Configuration:
  
  Go to the transaction code for maintaining scheduling schemas (e.g., /SCMB/SCHED or similar).
  Review the configuration of the schema identified by &2 in the error message.
  Look for the element identified by &1 and ensure it is only listed once.
  
  
  
  Remove Duplicate Entries:
  
  If you find that the element is indeed listed multiple times, remove the duplicates so that it only appears once in the schema.
  
  
  
  Validate Changes:
  
  After making changes, validate the schema to ensure that it is correctly configured and does not produce any further errors.
  
  
  
  Testing:
  
  Test the scheduling process again to confirm that the error has been resolved.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for detailed information on scheduling schemas and their configuration.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SCMB/SCHED for schema maintenance and /SCMB/PLANNING for planning-related configurations.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be updates or fixes provided by SAP.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or SCM functional team for further investigation, as they may have additional insights or access to system logs that can help diagnose the problem.