How To Fix SDME_MDB326 - Maintainable key fields are only allowed in key area

SAP Error Message - Details

• Message type: E = Error

• Message class: SDME_MDB - DME: Maintenance Dialog Builder

• Message number: 326

• Message text: Maintainable key fields are only allowed in key area

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 SDME_MDB326 - Maintainable key fields are only allowed in key area ?

  The SAP error message SDME_MDB326 indicates that there is an issue with the maintainable key fields in the context of a data model or database table. This error typically arises when you are trying to maintain or modify a data model in SAP that has key fields defined in a way that is not compliant with the system's requirements.
  Cause:
  The error occurs when:
  
  You are attempting to maintain key fields that are not defined in the key area of the data model.
  The system expects certain fields to be part of the key area, but they are not defined as such.
  There may be a mismatch between the data model definition and the actual data being processed.
  
  Solution:
  To resolve the SDME_MDB326 error, you can take the following steps:
  
  
  Check Data Model Definition:
  
  Review the data model or database table definition to ensure that the key fields are correctly defined in the key area.
  Ensure that all necessary fields that should be part of the key are included in the key area.
  
  
  
  Adjust Key Fields:
  
  If you have access to the data model configuration, adjust the key fields to ensure that they comply with the requirements of the system.
  You may need to add or remove fields from the key area based on your business requirements.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources related to data modeling and key field definitions to understand the requirements better.
  
  
  
  Testing:
  
  After making changes, test the data model to ensure that the error no longer occurs and that the data can be maintained as expected.
  
  
  
  Seek Help from SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for assistance. They may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  Key Fields: In SAP, key fields are essential for uniquely identifying records in a database table. They are critical for data integrity and retrieval.
  Data Model: A data model defines how data is structured, stored, and accessed in the system. It includes definitions of tables, fields, relationships, and constraints.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data model configuration.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.