How To Fix RSDS090 - &1: Length &2 deviates from data element (&3)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 090

• Message text: &1: Length &2 deviates from data element (&3)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS090 - &1: Length &2 deviates from data element (&3) ?

  The SAP error message RSDS090 typically indicates a discrepancy between the length of a field in a data source and the length defined in the corresponding data element. This error often arises in the context of data extraction or data modeling, particularly when working with DataSources in SAP BW (Business Warehouse) or when dealing with InfoObjects.
  Cause:
  
  Field Length Mismatch: The length of the field in the source system (e.g., a database table or a flat file) does not match the length defined in the SAP BW data element.
  Changes in Source Structure: If the structure of the source data has changed (e.g., a field was extended or modified), it may lead to this error.
  Incorrect DataSource Configuration: The DataSource may not be correctly configured to match the source system's data structure.
  
  Solution:
  
  Check Data Element Definition: Verify the definition of the data element in SAP BW. Ensure that the length defined for the data element matches the length of the corresponding field in the source system.
  Adjust DataSource: If the source structure has changed, you may need to adjust the DataSource in SAP BW to reflect these changes. This could involve modifying the DataSource or creating a new one.
  Re-activate DataSource: After making changes, re-activate the DataSource in SAP BW. This can often resolve issues related to metadata inconsistencies.
  Data Mapping: Ensure that the mapping between the source fields and the BW InfoObjects is correctly set up. If necessary, adjust the mapping to align with the source data structure.
  Check for Updates: If you are using a standard DataSource, check if there are any updates or notes from SAP regarding changes to the DataSource that may affect its structure.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to manage DataSources and InfoObjects.
  SAP Notes: Search for relevant SAP Notes that may address specific issues related to the RSDS090 error.
  Documentation: Review SAP documentation for best practices on DataSource configuration and InfoObject management.
  Testing: After making changes, perform tests to ensure that data extraction works as expected without triggering the error.
  
  By following these steps, you should be able to identify and resolve the cause of the RSDS090 error in your SAP environment.