How To Fix /SCMB/SCU020 - Saving is not possible; maintain the hierarchy completely

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMB/SCU -

• Message number: 020

• Message text: Saving is not possible; maintain the hierarchy completely

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMB/SCU020 - Saving is not possible; maintain the hierarchy completely ?

  The SAP error message /SCMB/SCU020 Saving is not possible; maintain the hierarchy completely typically occurs in the context of SAP Supply Chain Management (SCM) when there is an issue with the hierarchy structure that needs to be maintained before saving changes. This error indicates that the system requires a complete and valid hierarchy setup before allowing any save operations.
  Cause:
  
  Incomplete Hierarchy: The hierarchy structure (such as product hierarchy, location hierarchy, etc.) is not fully defined. This could mean that some nodes or levels in the hierarchy are missing or not properly linked.
  Missing Data: Certain required fields or attributes in the hierarchy nodes may not be filled out, leading to an incomplete structure.
  Validation Rules: The system may have specific validation rules that require certain conditions to be met before saving, which are not currently satisfied.
  
  Solution:
  
  Review Hierarchy Structure: Go to the relevant transaction or application where the hierarchy is maintained and check if all levels of the hierarchy are defined correctly. Ensure that all nodes are properly linked and that there are no missing elements.
  Complete Required Fields: Make sure that all mandatory fields for each node in the hierarchy are filled out. This may include descriptions, codes, or other attributes that are necessary for the hierarchy to be valid.
  Check for Errors: Look for any error messages or warnings in the hierarchy maintenance screen that might indicate what is missing or incorrect.
  Consult Documentation: Refer to SAP documentation or help resources for specific requirements related to the hierarchy you are working with.
  Test Changes: After making the necessary adjustments, try saving again to see if the error persists.
  
  Related Information:
  
  Transaction Codes: Depending on the specific hierarchy you are working with, you may be using different transaction codes (e.g., /SCMB/SCU01 for maintaining supply chain units).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, there may be specific fixes or updates provided by SAP.
  User Roles and Authorizations: Ensure that you have the necessary permissions to make changes to the hierarchy. Lack of proper authorizations can sometimes lead to unexpected errors.
  Support: If the issue persists after checking the hierarchy and required fields, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to resolve the error and successfully save your hierarchy changes in SAP SCM.