How To Fix COM_ATTRFRG_GEN144 - 'Multiple Values' and "Field Is Key" exclude each other

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_ATTRFRG_GEN - Message Class for Generating Attributes and Sets

• Message number: 144

• Message text: 'Multiple Values' and "Field Is Key" exclude each other

What causes this issue?

Multiple-value attributes are not allowed when creating a multiline set
type.

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?

To create a multiline set type, irrespective of whether it has been
designated for multiple use or not, remove the <LS>Multiple Values</>
indicator. However, if you want to generate a set type with
multiple-value attributes, it must be designated for multiple use and
the <LS>Field is Key</> indicator removed.

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 COM_ATTRFRG_GEN144 - 'Multiple Values' and "Field Is Key" exclude each other ?

  The SAP error message COM_ATTRFRG_GEN144, which states "Multiple Values" and "Field Is Key" exclude each other, typically occurs in the context of attribute fragmentation in SAP's Advanced Planning and Optimization (APO) or similar modules. This error indicates a conflict in the configuration of key fields and their allowed values.
  Cause:
  
  
  Key Field Configuration: The error arises when a field that is defined as a key field in the data model is also configured to accept multiple values. In SAP, key fields must have unique values for each record, while fields that allow multiple values can have several entries for a single record.
  
  
  Data Model Design: The design of the data model may not align with the business requirements. For instance, if a field is intended to hold multiple values but is also marked as a key, it creates a logical conflict.
  
  
  Attribute Fragmentation Settings: If you are using attribute fragmentation, the settings may not be correctly configured to handle the relationship between key fields and multi-value fields.
  
  
  Solution:
  
  
  Review Field Configuration: Check the configuration of the fields in question. Ensure that fields that are defined as key fields do not allow multiple values. If a field needs to hold multiple values, it should not be designated as a key field.
  
  
  Adjust Data Model: If the business requirement necessitates that a field should hold multiple values, consider redesigning the data model. This may involve creating a separate table or structure to handle the multiple values without conflicting with key field constraints.
  
  
  Modify Attribute Fragmentation: If you are using attribute fragmentation, review the fragmentation settings. Ensure that the fragmentation logic aligns with the key field definitions and does not attempt to assign multiple values to a key field.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on configuring key fields and multi-value fields. This can provide insights into best practices and common pitfalls.
  
  
  Testing: After making changes, conduct thorough testing to ensure that the error is resolved and that the data model behaves as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on attribute fragmentation and key field configurations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Training and Documentation: Consider training sessions or documentation on data modeling in SAP to better understand the implications of key fields and multi-value fields.
  
  By addressing the configuration and design issues that lead to this error, you can resolve the conflict and ensure that your SAP system operates smoothly.