How To Fix RD145 - Delta update no longer possible due to realignment

SAP Error Message - Details

• Message type: E = Error

• Message class: RD - CO-PA Connection to SAP BW

• Message number: 145

• Message text: Delta update no longer possible due to realignment

What causes this issue?

Due to a realignment, the hierarchical assignment of characteristic
values to other characteristic values in Profitability Analysis
changed. For example, customer A was reassigned to customer group B,
but was previously assigned to customer group Z.
Aggregates (summarization levels, summarization data and so on), and
replicates (for example, CO-PA data in InfoCubes of the SAP BW) created
before the realignment no longer agree with the segment level data. A
delta update to the SAP BW can no longer be carried out.
If you still apply the old delta method with this DataSource, first
schedule an InfoPackage for a reinitialization of the delta method.
If you already apply the new delta method "Generic Delta" with the
DataSource, first delete die initialization selections in all
BW systems in which the delta method has already been initialized
for the DataSource. Then schedule InfoPackages for
a reinitialization of the delta method in the BW systems.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RD145 - Delta update no longer possible due to realignment ?

  The SAP error message RD145 indicates that a delta update is no longer possible due to realignment issues. This typically occurs in the context of SAP's data extraction processes, particularly when using the SAP BW (Business Warehouse) system or when dealing with delta data loads from SAP ERP systems.
  Cause:
  The error RD145 usually arises from one of the following reasons:
  
  
  Realignment of Data: This can happen if the data in the source system has been changed or realigned in a way that affects the delta mechanism. For example, if the data structure or the key fields used for delta extraction have been modified, the delta queue may become inconsistent.
  
  
  Delta Queue Issues: If the delta queue has been reset or if there are inconsistencies in the delta records, it can lead to this error. This can happen due to manual interventions, system errors, or data inconsistencies.
  
  
  Data Deletion: If records that are part of the delta extraction have been deleted or modified in the source system, it can lead to a situation where the delta update cannot be processed.
  
  
  Solution:
  To resolve the RD145 error, you can follow these steps:
  
  
  Check Delta Queue: Review the delta queue in the source system to ensure that it is consistent and that there are no missing or corrupted records.
  
  
  Reinitialize Delta: If the delta queue is inconsistent, you may need to reinitialize the delta extraction. This involves:
  
  Stopping the delta process.
  Deleting the existing delta queue.
  Reinitializing the delta extraction process to create a new delta queue.
  
  
  
  Data Consistency Check: Ensure that the data structure in the source system matches the expectations of the delta extraction process. If there have been changes to the data model, you may need to adjust the delta extraction settings accordingly.
  
  
  Monitor for Changes: After reinitializing the delta, monitor the system for any further changes that could affect the delta extraction process.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to delta extraction and the specific data source you are working with for any additional troubleshooting steps or considerations.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RD145 for any specific patches or updates that may address known issues.
  Transaction Codes: Use transaction codes like RSA7 (for monitoring delta queues) and RSC3 (for delta initialization) to manage and monitor delta processes.
  Data Sources: Ensure that the data sources and InfoObjects involved in the delta extraction are correctly configured and that there are no discrepancies in the data model.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support for further assistance.