How To Fix OXDEP200 - Different columns cannot be linked together

SAP Error Message - Details

• Message type: E = Error

• Message class: OXDEP - OM: GUI: Form

• Message number: 200

• Message text: Different columns cannot be linked together

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OXDEP200 - Different columns cannot be linked together ?

  The SAP error message OXDEP200, which states "Different columns cannot be linked together," typically occurs in the context of data modeling or when working with queries in SAP BW (Business Warehouse) or SAP HANA. This error indicates that there is an attempt to create a relationship or link between two columns that are not compatible in terms of their data types or structures.
  Cause:
  
  Data Type Mismatch: The columns you are trying to link may have different data types (e.g., one is a string and the other is a number).
  Different Structures: The columns may belong to different tables or data sources that do not have a common key or structure.
  Inconsistent Data: The data in the columns may not match in terms of format or content, making it impossible to establish a link.
  Modeling Errors: There may be issues in the data model where the relationships between tables are not correctly defined.
  
  Solution:
  
  Check Data Types: Ensure that the columns you are trying to link have the same data type. If necessary, convert one of the columns to match the other.
  Review Data Model: Examine the data model to ensure that the relationships between tables are correctly defined. Make sure that the keys used for linking are consistent.
  Data Cleansing: If the data itself is inconsistent, consider cleansing the data to ensure that it matches in format and content.
  Use Compatible Columns: If the columns are fundamentally different and cannot be linked, consider using different columns that are compatible for the relationship you are trying to establish.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on data modeling and linking columns in your version of SAP.
  
  Related Information:
  
  SAP BW Documentation: Check the official SAP BW documentation for best practices on data modeling and linking tables.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  Data Dictionary: Use the Data Dictionary (SE11) in SAP to check the definitions of the columns you are trying to link, including their data types and attributes.
  
  By following these steps, you should be able to identify the cause of the OXDEP200 error and implement a solution to resolve it.