How To Fix EM001 - Delete all the substructures first

SAP Error Message - Details

• Message type: E = Error

• Message class: EM - IS-U Migration

• Message number: 001

• Message text: Delete all the substructures first

What causes this issue?

The current structure can only be deleted if no further substructures
exist.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Select the structure and delete all substructures.
Delete the structure

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EM001 - Delete all the substructures first ?

  The SAP error message EM001, which states "Delete all the substructures first," typically occurs when you are trying to delete a structure or an object that has dependent substructures or components. This is common in various SAP modules, especially in areas like customizing, data modeling, or configuration where hierarchical relationships exist.
  Cause:
  The error arises because the system enforces referential integrity. If a structure has substructures or components that depend on it, you cannot delete the parent structure until all dependent substructures are removed. This is to prevent orphaned records or inconsistencies in the data model.
  Solution:
  To resolve this error, follow these steps:
  
  
  Identify Substructures: Determine which substructures or components are linked to the structure you are trying to delete. This can often be done by checking the hierarchy or dependencies in the relevant transaction or configuration screen.
  
  
  Delete Substructures: Before you can delete the main structure, you need to delete all the substructures. Navigate to each substructure and delete them one by one.
  
  
  Check for Dependencies: Ensure that there are no other dependencies or references to the structure you are trying to delete. This may involve checking related tables, configurations, or settings.
  
  
  Delete the Main Structure: Once all substructures have been deleted, you should be able to delete the main structure without encountering the error.
  
  
  Transport Requests: If you are working in a development environment and need to transport changes to production, ensure that all deletions are included in the transport request.
  
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using different transaction codes (e.g., SE11 for Data Dictionary, SE80 for Object Navigator, or SPRO for customizing).
  Documentation: Refer to SAP documentation or help files for specific modules to understand the structure and dependencies better.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message.
  Testing: After making changes, always test to ensure that the deletion does not affect other functionalities or data integrity.
  
  If you continue to face issues, consider reaching out to your SAP Basis or functional team for further assistance, as they may have additional tools or insights into the specific configuration you are working with.