How To Fix MDG_MDF118 - The key of field &1 is too long

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 118

• Message text: The key of field &1 is too long

What causes this issue?

The key for field &V1& is &V2& characters long - including the
independent characteristics. The system only allows keys up to &V3&
characters.

System Response

During save, the settings will not be saved.
In other cases, processing is terminated.

How to fix this error?

Choose different fields, or change the technical properties for the
field.

Procedure for System Administrators

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 MDG_MDF118 - The key of field &1 is too long ?

  The SAP error message MDG_MDF118 ("The key of field &1 is too long") typically occurs in the context of Master Data Governance (MDG) when the key field of a data record exceeds the maximum length defined in the system. This can happen during data entry, data import, or data replication processes.
  Cause:
  
  Field Length Exceeded: The key field (indicated by &1 in the error message) has a defined maximum length in the data model, and the value being entered or processed exceeds this length.
  Data Model Configuration: The data model configuration in MDG may have specific constraints on the length of key fields that are not being adhered to.
  Data Source Issues: If data is being imported from an external source, the source data may not conform to the expected length constraints.
  
  Solution:
  
  Check Field Length: Review the definition of the key field in the data model to determine the maximum allowed length. Ensure that the data being entered or imported does not exceed this length.
  Data Validation: Implement validation checks before data entry or import to ensure that key fields conform to the required length.
  Adjust Data: If the data being processed is under your control, modify the data to ensure that it fits within the defined length constraints.
  Configuration Review: If necessary, review the configuration of the data model in MDG to see if adjustments can be made to accommodate longer key values, but be cautious as this may have implications for data integrity and system performance.
  Error Handling: Implement error handling in your data processing logic to catch and manage this error gracefully, providing feedback to users about the specific field and its length requirement.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP frequently releases notes that may provide additional context or solutions.
  MDG Documentation: Review the official SAP MDG documentation for guidelines on data model configuration and key field definitions.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By addressing the root cause of the error and ensuring compliance with field length requirements, you can resolve the MDG_MDF118 error effectively.