How To Fix MDG_BS_MAT_ACCESS151 - Selection condition must only contain key fields of entity type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_BS_MAT_ACCESS - Message class for MDG Material Access Layer

• Message number: 151

• Message text: Selection condition must only contain key fields of entity type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_BS_MAT_ACCESS151 - Selection condition must only contain key fields of entity type &1 ?

  The SAP error message MDG_BS_MAT_ACCESS151 indicates that there is an issue with the selection condition in a Master Data Governance (MDG) scenario, specifically related to the entity type you are working with. The error message states that the selection condition must only contain key fields of the specified entity type.
  Cause:
  This error typically occurs when you are trying to create or modify a selection condition in a data model or a process that is not adhering to the rules set for that entity type. In MDG, selection conditions are used to filter data based on certain criteria, and these conditions must only include key fields (primary identifiers) of the entity type you are working with.
  For example, if you are working with a material entity, the selection condition should only include fields that are defined as key fields in the material entity type. If you include non-key fields in the selection condition, the system will raise this error.
  Solution:
  To resolve this error, you should:
  
  
  Review the Selection Condition: Check the selection condition you have defined. Ensure that it only includes key fields of the entity type specified in the error message.
  
  
  Identify Key Fields: Determine which fields are considered key fields for the entity type in question. You can usually find this information in the data model or entity definition in the MDG configuration.
  
  
  Modify the Condition: Adjust your selection condition to remove any non-key fields. Only include fields that are defined as keys for that entity type.
  
  
  Test the Changes: After making the necessary adjustments, test the process again to ensure that the error is resolved.
  
  
  Related Information:
  
  
  Entity Types: In MDG, each entity type (like Material, Vendor, Customer, etc.) has a defined set of key fields. Understanding the structure of these entity types is crucial for configuring selection conditions correctly.
  
  
  MDG Configuration: Familiarize yourself with the MDG configuration settings, especially those related to data modeling and entity definitions. This will help you understand the relationships and constraints of the data you are working with.
  
  
  SAP Documentation: Refer to the official SAP documentation for MDG, which provides detailed information on entity types, key fields, and how to configure selection conditions properly.
  
  
  Debugging: If you are still facing issues after making changes, consider using debugging tools in SAP to trace the execution and identify where the selection condition is being applied incorrectly.
  
  
  By following these steps, you should be able to resolve the MDG_BS_MAT_ACCESS151 error and ensure that your selection conditions are correctly defined.