How To Fix IRW_LT047 - Parent table not found in structure definition model (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: IRW_LT - ILM LT

• Message number: 047

• Message text: Parent table not found in structure definition model (see long text)

What causes this issue?

Parent table not found in structure definition model

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?

Make an entry in the structure definition with the header table as the
parent and child tables as the value you are attempting to enter for the
parent table in the next row. This enables the table relationship.
For example, if you want to enter SBOOK as the parent table and SNVOICE
as the child table, then SBOOK should be present in one of the preceding
structure definition, as shown in the table below.
Also in the example note that sequence number of preceding structure
definition SFLIGHT and SBOOK is less than
SBOOK and SINVOICE, which is a necessary condition.
Sequence Parent Table Child
Table
009 SFLIGHT
SFLIGHT
010 SFLIGHT
SBOOK
020 SBOOK
SINVOICE

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IRW_LT047 - Parent table not found in structure definition model (see long text) ?

  The SAP error message IRW_LT047, which states "Parent table not found in structure definition model," typically occurs in the context of SAP's data modeling or data integration processes, particularly when working with data structures in SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  This error usually arises due to one of the following reasons:
  
  
  Missing Parent Table: The parent table that is referenced in the structure definition is not defined or does not exist in the system. This can happen if the table was deleted or if there was a change in the data model that was not properly reflected.
  
  
  Incorrect Configuration: There may be a misconfiguration in the data model or structure definition, where the parent-child relationship is not correctly established.
  
  
  Transport Issues: If the data model was transported from one system to another (e.g., from development to production), there might be inconsistencies or missing objects in the target system.
  
  
  Versioning Issues: If there are multiple versions of the data model, the system might be referencing an outdated or incorrect version.
  
  
  Solution:
  To resolve the IRW_LT047 error, you can take the following steps:
  
  
  Check the Structure Definition: Review the structure definition model to ensure that the parent table is correctly defined. Verify that the parent table exists in the system.
  
  
  Recreate or Restore the Parent Table: If the parent table is missing, you may need to recreate it or restore it from a backup if it was deleted.
  
  
  Validate Data Model: Use transaction codes like RSA1 (for BW) or HANA Studio to validate the data model and check for any inconsistencies.
  
  
  Check Transport Requests: If the issue arose after a transport, check the transport requests to ensure that all necessary objects were included and successfully transported.
  
  
  Update References: If the parent table has been renamed or modified, update the references in the structure definition to point to the correct table.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific version of SAP you are using, as there may be known issues or patches available.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) for BW or HANA Studio for HANA-related tasks.
  Data Modeling Best Practices: Review best practices for data modeling in SAP to avoid similar issues in the future.
  
  By following these steps, you should be able to identify and resolve the cause of the IRW_LT047 error in your SAP environment.