How To Fix MDQ_RM_PROCESS028 - Checked Field not unique within mining result at index &1.

SAP Error Message - Details

• Message type: E = Error

• Message class: MDQ_RM_PROCESS - MDQ Rule Mining Process Message Class

• Message number: 028

• Message text: Checked Field not unique within mining result at index &1.

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 MDQ_RM_PROCESS028 - Checked Field not unique within mining result at index &1. ?

  The SAP error message MDQ_RM_PROCESS028 indicates that there is a problem with the uniqueness of a checked field within a mining result at a specified index. This error typically arises in the context of SAP's Data Mining or Predictive Analytics functionalities, where the system expects certain fields to be unique for processing.
  Cause:
  The error occurs when the system encounters duplicate values in a field that is expected to be unique. This can happen due to:
  
  Data Quality Issues: The dataset being processed may contain duplicate entries for the field that is supposed to be unique.
  Incorrect Configuration: The configuration of the mining model or the data source may not be set up correctly, leading to conflicts in expected uniqueness.
  Data Preparation Errors: During the data preparation phase, if the data is not properly cleaned or transformed, it can lead to duplicates.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Data for Duplicates:
  
  Review the dataset being used for the mining process. Look for duplicate entries in the field that is causing the issue.
  Use SQL queries or data profiling tools to identify and eliminate duplicates.
  
  
  
  Data Cleansing:
  
  If duplicates are found, you may need to cleanse the data. This could involve removing duplicates, aggregating data, or ensuring that the field values are unique.
  
  
  
  Review Model Configuration:
  
  Check the configuration of the mining model to ensure that it is set up correctly. Make sure that the fields defined as unique are indeed unique in the dataset.
  
  
  
  Adjust Data Preparation Steps:
  
  If you are using data preparation steps (like transformations or aggregations), ensure that these steps do not inadvertently create duplicates.
  
  
  
  Re-run the Mining Process:
  
  After addressing the duplicates and ensuring the data is clean, re-run the mining process to see if the error persists.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Data Mining and Predictive Analytics for more details on data requirements and configurations.
  Data Quality Tools: Consider using data quality tools or features within SAP to help identify and resolve data issues.
  Community Forums: Check SAP community forums or support channels for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.