How To Fix COM_PRODUCT_CUST402 - Key type &1 of set type &2 is not compatible with key type &3

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_PRODUCT_CUST - General Customizing Messages for Product Master

• Message number: 402

• Message text: Key type &1 of set type &2 is not compatible with key type &3

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message COM_PRODUCT_CUST402 - Key type &1 of set type &2 is not compatible with key type &3 ?

  The SAP error message COM_PRODUCT_CUST402 indicates that there is a compatibility issue with key types in a set type configuration. This typically occurs in the context of product master data or configuration settings in SAP, particularly when dealing with characteristics and values in the context of variant configuration or product hierarchies.
  Cause:
  The error message is triggered when there is an attempt to use a key type that is not compatible with the expected key type for a specific set type. This can happen in various scenarios, such as:
  
  Incorrect Configuration: The configuration of the product or variant does not match the expected key types defined in the system.
  Data Inconsistency: There may be inconsistencies in the master data or configuration settings that lead to incompatible key types being referenced.
  Custom Development: If there are custom developments or enhancements in the system, they may inadvertently lead to this error if they do not adhere to the expected data structures.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Configuration Settings:
  
  Review the configuration of the product or variant in question. Ensure that the key types defined in the set type match the expected key types.
  Navigate to the relevant configuration settings in the SAP system (e.g., transaction codes like CU50 for configuration or CT04 for characteristics).
  
  
  
  Validate Master Data:
  
  Ensure that the master data for the product is correctly set up. Check for any inconsistencies in the characteristics and values assigned to the product.
  Use transaction codes like MM03 (Display Material) or CS03 (Display BOM) to review the product details.
  
  
  
  Review Custom Code:
  
  If there are any custom developments or enhancements, review the code to ensure that it is correctly handling key types and set types.
  Consult with your ABAP developers if necessary to debug any custom logic that may be causing the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific error message for additional insights or known issues.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error no longer occurs and that the product configuration works as expected.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with relevant transaction codes for product configuration and master data management, such as CU01, CU02, MM01, and CS01.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.