How To Fix RSDA179 - Invalid change of type for time slice characteristic '&1' of DAP '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDA - BW Archiving: Messages

• Message number: 179

• Message text: Invalid change of type for time slice characteristic '&1' of DAP '&2'

What causes this issue?

The characteristic '&v1&' is used in the active data archiving process '
&v2&' as the time slice characteristic. In this case the data type of
the characteristic may not be changed.

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?

If you are sure that the planned change of type will not cause problems
in a transport to a downstream productive system, you can delete the
relevant data archiving process, then perform the change of type, and
finally recreate the data archiving process.
<ZH>Caution: </>
When you delete a data archiving process, all the data for this object
is lost in the archive or in a connected near-line storage. If you still
need the data, load it back again before deleting the data archiving
process.

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 RSDA179 - Invalid change of type for time slice characteristic '&1' of DAP '&2' ?

  The SAP error message RSDA179 indicates that there is an invalid change of type for a time slice characteristic in a DataSource or Data Transfer Process (DAP). This typically occurs in the context of SAP BW (Business Warehouse) when dealing with data extraction and transformation processes.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Inconsistent Data Types: The time slice characteristic you are trying to modify has a data type that is not compatible with the changes you are attempting to make. For example, if you are trying to change a characteristic from a date type to a string type, this will trigger the error.
  DataSource Configuration: The DataSource or DAP may have been configured incorrectly, leading to a mismatch in expected data types for the time slice characteristic.
  Change in Data Model: If there have been recent changes to the underlying data model or the structure of the InfoObject associated with the time slice characteristic, this can lead to inconsistencies.
  
  Solution:
  To resolve the RSDA179 error, you can take the following steps:
  
  
  Check Data Types: Review the data types of the time slice characteristic in the DataSource and ensure that they are consistent with the expected types in the target InfoObject or DAP. Make sure that any changes you are trying to implement are valid.
  
  
  Review DAP Configuration: Go through the configuration of the Data Transfer Process and ensure that all mappings and transformations are correctly set up. Pay special attention to the time slice characteristics and their expected data types.
  
  
  Recreate the DataSource: If the DataSource is significantly misconfigured, consider recreating it. This can help reset any incorrect settings that may have been applied.
  
  
  Check for Recent Changes: If there have been recent changes to the data model or InfoObjects, verify that these changes are reflected in the DataSource and DAP configurations.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP BW you are using. There may be specific guidelines or known issues related to this error.
  
  
  Testing: After making the necessary adjustments, test the Data Transfer Process again to ensure that the error has been resolved.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the SAP BW documentation for best practices on configuring DataSources and DAPs, especially regarding time slice characteristics.
  
  By following these steps, you should be able to identify the root cause of the RSDA179 error and implement a suitable solution.