How To Fix SWDP_WB_TOOL269 - Subtree of &1 (child &3) not contained in &2. External mapping impossible

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 269

• Message text: Subtree of &1 (child &3) not contained in &2. External mapping impossible

What causes this issue?

External mapping to node &V2& should be defined for node &V1& of the
specified component usage. The mapping is not consistent, however: the
subtree of &V1& is not included fully in the subtree of &V2& and neither
subtree matches. "Included fully" means that each element in the subtree
of &V1& has to be included at the same hierarchical level in the subtree
of &V2&. The first difference was determined in the child element &V3&
of node &V1&.

System Response

The system rejects the operation.

How to fix this error?

Change the subtree for either &V1& or &V2& to enable consistent mapping.
You have to switch to the context editor to do this.

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.