How To Fix CNV150 - &1 selected automatically (largest existing tablespace)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 150

• Message text: &1 selected automatically (largest existing tablespace)

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 CNV150 - &1 selected automatically (largest existing tablespace) ?

  The SAP error message "CNV150 &1 selected automatically (largest existing tablespace)" typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services. This message indicates that the system has automatically selected a tablespace for the operation based on the largest available tablespace in the database.
  Cause:
  
  Automatic Selection: The system automatically selects the largest existing tablespace to accommodate the data being migrated or converted. This is a standard behavior to ensure that there is enough space for the operation.
  Insufficient Space: The selected tablespace may not have enough space to accommodate the data being processed, leading to potential issues during the migration.
  Configuration Issues: There may be configuration settings in the migration tool that dictate how tablespaces are selected or managed.
  
  Solution:
  
  Check Tablespace Size: Verify the size of the selected tablespace and ensure that it has enough free space to accommodate the data being migrated. You can do this using database management tools or SQL queries.
  Manually Select Tablespace: If necessary, you can manually specify a different tablespace that has sufficient space for the operation. This may involve adjusting the configuration settings in the migration tool.
  Increase Tablespace Size: If the selected tablespace is indeed the largest but still lacks sufficient space, consider increasing its size by adding data files or extending existing files.
  Monitor Migration Process: Keep an eye on the migration process to ensure that it completes successfully without running into space issues.
  Review Migration Settings: Check the settings and parameters used in the migration tool to ensure they are configured correctly for your environment.
  
  Related Information:
  
  Database Management: Familiarity with your specific database management system (e.g., Oracle, SQL Server, HANA) is essential for managing tablespaces effectively.
  SAP Notes: Check SAP Notes and documentation related to the specific migration tool you are using for any known issues or additional guidance.
  Performance Considerations: Be aware that selecting a very large tablespace can impact performance, so it's essential to balance size with performance needs.
  Backup and Recovery: Always ensure that you have a backup of your data before performing any migration or conversion operations.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.