How To Fix CB326 - Destination &: The first key field of table & is not MANDT

SAP Error Message - Details

• Message type: E = Error

• Message class: CB - PP-PI-PMA: Dialog Messages for Process Management

• Message number: 326

• Message text: Destination &: The first key field of table & is not MANDT

What causes this issue?

The destination &V1& of type "ABAP/4 table" has been assigned to the
selected process message via the message category. However, for one of
the following reasons, process messages cannot be transferred to the
destination table &V2&:
The MANDT field is not the first key field of the table.
The domain assigned to the MANDT field does not define the same data
type as the MANDT domain.
The domain assigned to the MANDT field does not define the same field
length as the MANDT domain.
The process message has not been sent to the destination &V1&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

RESET N1
Check the definition of the table &V2& in the ABAP/4 Dictionary and
correct it according to the requirements listed above.
INCLUDE 'NA_EMPF_SEND' OBJECT DOKU ID TX LANGUAGE E
Otherwise, maintain the table entry manually, if necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CB326 - Destination &: The first key field of table & is not MANDT ?

  The SAP error message CB326 indicates that there is an issue with the key fields of a table in the context of a data transfer or a configuration that involves client-specific data. Specifically, the error states that the first key field of the specified table is not the client field (MANDT), which is a requirement for many SAP tables to ensure that data is properly segregated by client.
  Cause:
  
  Table Definition: In SAP, many tables are designed to include the client field (MANDT) as the first key field. This is essential for client-specific data management. If a table does not have MANDT as the first key field, it can lead to issues when trying to access or manipulate data in a client-specific context.
  Custom Tables: If you are working with custom tables or have modified standard tables, it is possible that the key fields were not defined correctly, leading to this error.
  Data Transfer: This error can also occur during data transfer processes (like ALE, IDoc, or BAPIs) where the system expects the first key field to be MANDT.
  
  Solution:
  
  Check Table Definition: Review the definition of the table mentioned in the error message. Ensure that the first key field is MANDT. If it is not, you may need to modify the table structure.
  Modify Custom Tables: If the table is a custom table, consider altering the table to include MANDT as the first key field. This may involve data migration if there is existing data.
  Adjust Data Transfer Logic: If the error occurs during a data transfer, check the logic or configuration of the transfer process. Ensure that it is compatible with the table structure and that it correctly handles client-specific data.
  Consult Documentation: Refer to SAP documentation or notes related to the specific table and the context in which the error occurs. There may be specific guidelines or best practices for handling such situations.
  
  Related Information:
  
  Client Concept in SAP: Understanding the client concept in SAP is crucial. MANDT is the client field that differentiates data between different clients in the same SAP system.
  Table Maintenance: If you are modifying tables, ensure that you follow best practices for table maintenance and data integrity.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context or solutions.
  Development Guidelines: If you are a developer, familiarize yourself with SAP's guidelines for creating custom tables and data structures to avoid such issues in the future.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with an SAP Basis or ABAP consultant who can provide more in-depth analysis and assistance.