How To Fix R7B671 - InfoCube &1 is flat, so should only have an F-fact table

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 671

• Message text: InfoCube &1 is flat, so should only have an F-fact table

What causes this issue?

InfoCube &V1& is a flat InfoCube according to its metadata (cube subtype
= 'F'), but has other tables such as regular dimension tables or the
compressed E-fact table in addition to F-fact table &V2&.

System Response

The check on InfoCube &V1& returned an error. InfoCube &V1& cannot be
activated.

How to fix this error?

Try to identify the root cause of the changed cube subtype and adjust it
accordingly.

Procedure for System Administrators

Activating an InfoCube where its cube subtype is 'F', but it is not
actually flat (it has dimension tables or compressed E-fact tables)
results in data loss during DDIC activation of the F-fact table. During
DDIC activation<(>,<)> the ABAP Database Utility SE14 will be run
because the F-fact table contains data. As the data types of the F-fact
table columns will be changed, data loss occurs.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message R7B671 - InfoCube &1 is flat, so should only have an F-fact table ?

  The SAP error message R7B671 indicates that there is an issue with the structure of an InfoCube in SAP BW (Business Warehouse). Specifically, it states that the InfoCube is flat, which means it is designed to have a single fact table (an F-fact table) and should not contain any additional fact tables or complex structures.
  Cause:
  The error typically arises when:
  
  Incorrect Configuration: The InfoCube has been incorrectly configured to include multiple fact tables or has been set up in a way that does not align with the flat structure.
  Data Model Issues: There may be inconsistencies in the data model, such as trying to load data into a structure that is not compatible with the flat InfoCube design.
  Transformation Errors: During the data loading process, transformations may be incorrectly defined, leading to attempts to load data into a structure that is not supported.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check InfoCube Structure:
  
  Verify that the InfoCube is indeed defined as a flat InfoCube. You can do this by checking the InfoCube definition in the SAP BW modeling tools.
  Ensure that it only has one fact table (F-fact table) and no additional fact tables.
  
  
  
  Review Data Load Process:
  
  Examine the data load process and transformations to ensure they are correctly set up for a flat InfoCube.
  Make sure that the data source and transformation rules are aligned with the flat structure.
  
  
  
  Adjust InfoCube Design:
  
  If the InfoCube needs to support multiple fact tables, consider redesigning it as a multi-dimensional InfoCube instead of a flat one.
  If it is intended to remain flat, remove any additional fact tables or adjust the design to comply with the flat structure.
  
  
  
  Re-activate InfoCube:
  
  After making the necessary adjustments, you may need to re-activate the InfoCube to ensure that the changes take effect.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed guidance on InfoCube design and data loading processes.
  
  
  
  Related Information:
  
  InfoCube Types: Understand the different types of InfoCubes in SAP BW, including flat and multi-dimensional InfoCubes, and their appropriate use cases.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW to avoid similar issues in the future.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error message.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.