How To Fix 42857 - You are linking to substructure(s)in &1 area(s):&2 &3 &4

42857 - Overview

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 857

• Message text: You are linking to substructure(s)in &1 area(s):&2 &3 &4

What causes this issue?

Substructures can only be included in other structures.

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?

If you still want to use the structure in your substructure, convert
the link to the substructure to an include.
Proceed as follows:
Note down the technical name of the substructure.
Remove the link to the substructure from your structure.
Position the cursor on the substructure.
Choose <LS>Info object</> -> <LS>Remove from structure</>.
Include the substructure.
Position the cursor at the location where the substructure should be
inserted.
Choose <LS>Info object</> -> <LS>Insert</> -> <LS>At same level/as
subnode</>.
The <LS>Insert Info Object</> dialog box appears.
Choose <LS>Use existing info object</>.
Mark <LS>Structure</> in the <LS>Info Object Class</> dialog box.
The <LS>Find Info Object</> dialog box appears.
Enter the technical name of the substructure and start the search.
Select the substructure and copy the selection.
The <LS>Structure <Structure name></> dialog box appears.
Select <LS>Include</>.
The substructure is included in your structure.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

42857 - Details

• The SAP error message 42857 typically occurs when there is an attempt to link to substructures in a specific area that is not allowed or is incorrectly configured. This error is often related to the configuration of data structures in the SAP system, particularly in the context of data modeling or when working with structures in ABAP.
  
  Cause:
  The error message indicates that you are trying to link to substructures in certain areas that are not permitted. This can happen due to several reasons:
  
  Incorrect Configuration: The data structure or the configuration of the area does not allow linking to the specified substructures.
  Data Model Issues: There may be inconsistencies or errors in the data model that prevent the linking of substructures.
  Authorization Issues: The user may not have the necessary authorizations to perform the linking operation.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Configuration: Review the configuration of the data structures involved.