How To Fix MCEX145 - Extraction structure &1 was changed -> See long text

MCEX145 - Overview

• Message type: E = Error

• Message class: MCEX - Extraction Interface LIS/BW

• Message number: 145

• Message text: Extraction structure &1 was changed -> See long text

What causes this issue?

Note the following points before transporting the changed structure
&V1& into another system:
The transport should be carried out at a time when no postings are
being made in the target system. Otheriwse initialization is necessary,
otherwise documents that are created during this phase will get lost.
In the target system there should be no data in any clients for the V3
update for application &V2&. If you are not sure, start the V3 update
directly for application &V2& in all clients.
If there is still data in central delta management for the target
system you should get this before the transport from BW takes place.
If you have already carried out a restructure in the target system, it
may be that the data is still available in the restructure tables.
After the transport, these entries are no longer copied into BW. The
contents of the restructure tables for the application &V2& should be
deleted in the target system and a restructure may need to be carried
out.
If the update log is active in the target system, the log data from
application &V2& can no longer be read after the transport. This is
only possible after posting and the relevant overwriting of the last
log entry.
You can use report RMCSBWCC to display a log in the target system for
the changed extract structure saying whether one of the above problems
has occurred. An additional switch allows you to delete all update logs
for the application of all selected extractors.
Note that if you change the extract structure, you need to reactivate
the transfer structures in BW.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MCEX145 - Extraction structure &1 was changed -> See long text ?

  The SAP error message MCEX145 indicates that an extraction structure has been changed, which can affect data extraction processes, particularly in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence). This message typically arises when there are modifications to the data model, such as changes in the InfoObject, InfoProvider, or the extraction structure itself.
  
  Cause:
  
  Changes in the Extraction Structure: The extraction structure has been modified, which may include adding or removing fields, changing data types, or altering the structure in a way that impacts data extraction.
  Inconsistencies: There may be inconsistencies between the data source and the extraction structure, leading to issues during data extraction.
  Versioning Issues: If the extraction structure has been updated in a newer version of the system, it may not be compatible with the existing data flows or processes.
  
  
  Solution:
  
  Review the Long Text: The error message suggests checking the long text for more details. This can provide