DDLS391 - ( allowed types: & )

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 391

• Message text: ( allowed types: & )

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS391 - ( allowed types: & ) ?

  The SAP error message DDLS391 typically indicates that there is an issue with the data type being used in a Data Definition Language (DDL) statement, such as when creating or altering database objects like tables or views. The message usually specifies that the data type being used is not allowed or is invalid for the operation being performed.
  Cause:
  The error message DDLS391 can occur due to several reasons:
  
  Invalid Data Type: The data type specified in the DDL statement is not supported or recognized by the database system.
  Mismatched Data Types: The data type used does not match the expected data type for the column or field in the database.
  Database Compatibility: The data type may not be compatible with the database version or the specific database system being used (e.g., HANA, Oracle, etc.).
  Syntax Errors: There may be syntax errors in the DDL statement that lead to the misinterpretation of the data type.
  
  Solution:
  To resolve the DDLS391 error, you can take the following steps:
  
  Check Data Types: Review the data types used in your DDL statement and ensure they are valid and supported by the database system. Refer to the SAP documentation for the list of allowed data types.
  Correct Syntax: Ensure that the DDL statement is correctly formatted and adheres to the syntax rules of the database you are working with.
  Database Compatibility: Verify that the data types you are using are compatible with the version of the database you are working with. If you are using a specific database (like HANA), check the documentation for any specific requirements or limitations.
  Use Allowed Types: The error message may provide a list of allowed types (indicated by &). Make sure to use one of those types in your DDL statement.
  Testing: If possible, test the DDL statement in a development environment to ensure it works as expected before applying it in production.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on data types and DDL statements.
  Transaction Codes: You can use transaction codes like SE11 (Data Dictionary) to check the definitions of tables and fields, which can help you identify the correct data types.
  Community Forums: Consider checking SAP community forums or support channels for similar issues and solutions shared by other users.
  
  If you continue to experience issues after following these steps, it may be helpful to consult with your SAP Basis or development team for further assistance.