How To Fix SMT018 - No structure was specified

SAP Error Message - Details

• Message type: E = Error

• Message class: SMT -

• Message number: 018

• Message text: No structure was specified

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 SMT018 - No structure was specified ?

  The SAP error message SMT018 ("No structure was specified") typically occurs in the context of SAP's data migration or data transfer processes, particularly when using tools like the SAP Migration Tool or SAP Data Services. This error indicates that the system expects a structure to be defined for the data operation, but none has been provided.
  Cause:
  
  Missing Structure Definition: The most common cause is that the user has not specified a data structure or mapping for the data being processed.
  Incorrect Configuration: There may be an issue with the configuration of the data transfer or migration settings, leading to the system not recognizing the required structure.
  User Input Error: The user may have overlooked a required field or made an error in the input that prevents the structure from being recognized.
  
  Solution:
  
  Specify the Structure: Ensure that you have defined the necessary data structure in the migration or transfer tool. This may involve selecting or creating a structure that matches the data you are trying to import or export.
  Check Configuration Settings: Review the configuration settings for the data migration or transfer process. Make sure that all required fields are filled out correctly and that the structure is properly linked to the data source.
  Review Documentation: Consult the SAP documentation or help resources related to the specific tool you are using. This can provide insights into the required steps for defining structures.
  Error Logs: Check any error logs or detailed messages provided by the system for additional context on what might be missing or misconfigured.
  Consult with SAP Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for assistance. They may have additional insights or solutions based on your specific configuration and environment.
  
  Related Information:
  
  SAP Migration Cockpit: If you are using the SAP Migration Cockpit, ensure that you have selected the correct migration object and that all required fields are filled out.
  Data Services: If using SAP Data Services, verify that the data flow is correctly set up and that all necessary mappings and structures are defined.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide updates and patches that could resolve the issue.
  
  By following these steps, you should be able to resolve the SMT018 error and successfully proceed with your data migration or transfer tasks.