How To Fix R7B379 - Output length should be greater than or equal to the length

SAP Error Message - Details

• Message type: E = Error

• Message class: R7B - BW Metadata (InfoCube, InfoObject, InfoObject catalog)

• Message number: 379

• Message text: Output length should be greater than or equal to the length

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message R7B379 - Output length should be greater than or equal to the length ?

  The SAP error message R7B379, which states "Output length should be greater than or equal to the length," typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when there is a mismatch between the expected output length of a data field and the actual length defined in the data model or transformation.
  Cause:
  
  
  Data Type Mismatch: The output length defined for a field in the target structure (like InfoObject, DSO, or InfoCube) is less than the length of the data being processed. This can happen if the source data has a longer length than what is defined in the target.
  
  
  Transformation Rules: If you are using transformations to map fields from a source to a target, the transformation rules may not be correctly defined, leading to a situation where the output length is not sufficient.
  
  
  Field Length Changes: If there have been changes to the field lengths in the source or target structures after the transformation was created, this can lead to inconsistencies.
  
  
  Solution:
  
  
  Check Field Lengths: Review the field lengths in both the source and target structures. Ensure that the target field's length is equal to or greater than the source field's length.
  
  
  Adjust Transformation: If you are using a transformation, check the mapping and ensure that the output length is correctly defined. You may need to adjust the transformation rules to accommodate the data.
  
  
  Modify Data Model: If necessary, modify the data model (e.g., InfoObject, DSO, or InfoCube) to increase the length of the target field to match the source data.
  
  
  Re-activate Objects: After making changes, ensure to re-activate the affected objects (like InfoObjects, transformations, etc.) to apply the changes.
  
  
  Test the Data Load: After making the necessary adjustments, perform a test data load to ensure that the error is resolved.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error.
  Data Modeling Guidelines: Familiarize yourself with best practices for data modeling in SAP BW/BI to avoid similar issues in the future.
  Documentation: Review SAP documentation regarding transformations and data modeling to understand how to properly define field lengths and mappings.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.