How To Fix MO403 - & is a structure, not a table

SAP Error Message - Details

• Message type: E = Error

• Message class: MO - Modeling and Prototyping

• Message number: 403

• Message text: & is a structure, not a table

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 MO403 - & is a structure, not a table ?

  The SAP error message MO403 typically indicates that there is an issue related to the data structure being referenced in a Material Management (MM) or Production Planning (PP) context. The specific message "is a structure, not a table" suggests that the system is trying to access or manipulate a data structure as if it were a database table, which is not allowed.
  Cause:
  
  Incorrect Data Reference: The error often arises when a program or function module is trying to read or write data to a structure instead of a table. This can happen if the developer mistakenly uses a structure name where a table name is expected.
  Custom Development Issues: If there are custom ABAP programs or enhancements, they might be incorrectly coded to handle structures as if they were database tables.
  Configuration Errors: Sometimes, configuration settings in the system might lead to incorrect data handling, causing the system to misinterpret the data types.
  
  Solution:
  
  Check the Code: If you have access to the ABAP code, review the relevant sections where the error occurs. Ensure that structures are not being used in place of tables. Look for any SELECT statements or data manipulations that might be incorrectly referencing a structure.
  Debugging: Use the SAP debugger to trace the execution of the program and identify where the error is triggered. This can help pinpoint the exact line of code causing the issue.
  Consult Documentation: If the error is occurring in standard SAP transactions, refer to SAP Notes or documentation for any known issues or patches that might address the problem.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance. Provide them with the error details and any relevant context.
  
  Related Information:
  
  Data Structures vs. Tables: In SAP, a structure is a data type that can hold multiple fields but does not have a database representation, while a table is a database object that stores data in rows and columns. Understanding the difference is crucial for proper data handling in ABAP.
  ABAP Development: Familiarity with ABAP programming concepts, especially regarding data types, is essential for troubleshooting such errors.
  SAP Notes: Regularly check SAP Notes for updates or patches related to the specific transaction or module you are working with, as they may contain fixes for known issues.
  
  By addressing the root cause of the error and ensuring that structures and tables are used appropriately, you can resolve the MO403 error effectively.