How To Fix RS_B4H_SOURCE_APD020 - APD process '&1' does not have valid structure.

RS_B4H_SOURCE_APD020 - Overview

• Message type: E = Error

• Message class: RS_B4H_SOURCE_APD -

• Message number: 020

• Message text: APD process '&1' does not have valid structure.

What causes this issue?

APD process does not have valid structure and was not analyzed
correctly. Make sure process have correct structure and that it does
contain APD target node.

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.

RS_B4H_SOURCE_APD020 - Details

• The SAP error message RS_B4H_SOURCE_APD020 indicates that there is an issue with the structure of an Analysis Process Designer (APD) process in SAP BW (Business Warehouse). Specifically, it means that the APD process you are trying to execute does not have a valid structure, which can prevent it from running successfully.
  Causes:
  
  Invalid or Missing Data Source: The data source defined in the APD process may not be valid or may have been deleted or modified.
  Incorrect Configuration: The configuration of the APD process may be incorrect, such as missing key fields or incorrect mappings.
  Changes in Data Model: If there have been changes in the underlying data model (e.g., InfoObjects, InfoProviders), it may lead to the APD process becoming invalid.
  Transport Issues: If the APD process was transported from one system to another, it may not have been transported correctly, leading to structural issues.
  Version Compatibility: The version of the BW system may not support