How To Fix SWDP_WB_TOOL221 - Mapping for root node &1 not possible

SWDP_WB_TOOL221 - Overview

• Message type: E = Error

• Message class: SWDP_WB_TOOL - Web Dynpro: Messages for Workbench Tools

• Message number: 221

• Message text: Mapping for root node &1 not possible

What causes this issue?

You want to define mapping for the root node of a context. This is not
possible.

System Response

The system rejects the operation and permits special cases only:
If the mapping original is
A node for which no mapping is defined or
A node that is not the child node of a node and for which mapping is
defined
then the system copies the original node to create a new node that is a
direct child node of the context's root node and then defines mapping
between the two of them.

How to fix this error?

Root nodes cannot be used as originals for mapping, and mapping may only
be defined for root nodes in the cases described above.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WB_TOOL221 - Mapping for root node &1 not possible ?

  The SAP error message SWDP_WB_TOOL221 indicates that there is an issue with the mapping for the root node in the context of SAP Web Dynpro. This error typically arises when there is a problem with the configuration or definition of the Web Dynpro component or its associated data model.
  
  Cause:
  
  Missing or Incorrect Mapping: The root node of the data model may not be correctly mapped to the corresponding data source or structure.
  Inconsistent Data Model: There may be inconsistencies in the data model definitions, such as missing attributes or incorrect data types.
  Changes in Data Structure: If there have been recent changes to the underlying data structure or database tables, the mappings may no longer be valid.
  Transport Issues: If the Web Dynpro component was transported from one system to another, there may be missing dependencies or configurations.
  
  
  Solution:
  
  
  Check Data Model Configuration:
  
  Go to the Web Dynpro component in the SAP system and verify the data