How To Fix BRAIN_DEV081 - Cache mode of partition '&1' (XWGR: 0x&2) changed from '&3' to '&4'

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN_DEV - BRAIN messages (for use by development)

• Message number: 081

• Message text: Cache mode of partition '&1' (XWGR: 0x&2) changed from '&3' to '&4'

What causes this issue?

Cache mode '&V3&' is not supported by partition '&V1&' (XWGR: 0x
&V2&) for technical reasons.

System Response

The cache mode of the partition is changed from '&V3&' to '&V4&'.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

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 BRAIN_DEV081 - Cache mode of partition '&1' (XWGR: 0x&2) changed from '&3' to '&4' ?

  The SAP error message BRAIN_DEV081 indicates that there has been a change in the cache mode of a partition in the SAP BW (Business Warehouse) system. This message typically arises in the context of data modeling and can be related to the configuration of InfoProviders, such as InfoCubes or DataStore Objects (DSOs).
  Cause:
  The error message is triggered when the cache mode of a specific partition (identified by &1) changes from one state (&3) to another (&4). The cache mode can be related to how data is stored and accessed in the system, and changes can occur due to various reasons, such as:
  
  Manual Configuration Changes: An administrator or developer may have manually changed the cache settings for the partition.
  Transport Requests: Changes made in a development environment and transported to a production environment can lead to differences in cache settings.
  System Upgrades or Patches: Upgrading the SAP BW system or applying patches may also lead to changes in cache configurations.
  Data Load Processes: Certain data load processes may alter the cache mode as part of their execution.
  
  Solution:
  To resolve the BRAIN_DEV081 error, consider the following steps:
  
  Check Configuration: Review the cache settings for the affected partition. Ensure that the settings are as intended and consistent with the overall data model design.
  Review Change Logs: If the change was unexpected, check the change logs or transport logs to identify who made the change and why.
  Revert Changes: If the change was made in error, revert the cache mode to its previous state if possible.
  Consult Documentation: Refer to SAP documentation or notes related to cache management in BW to understand the implications of different cache modes.
  Test Data Loads: After making any changes, test the data load processes to ensure that they function correctly with the new cache settings.
  Contact SAP Support: If the issue persists or if you are unsure about the changes, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Cache Modes: Understanding the different cache modes (e.g., "Active", "Inactive", "Read-Only") and their implications on performance and data access is crucial.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide guidance on cache management.
  BW Administration: Familiarize yourself with BW administration tasks, including monitoring and managing InfoProviders and their settings.
  
  By following these steps, you should be able to address the BRAIN_DEV081 error and ensure that your SAP BW system operates smoothly.