How To Fix DT601 - Maintain the data class and size category for table &

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 601

• Message text: Maintain the data class and size category for table &

What causes this issue?

You have not yet maintained the technical settings for the table. The
parameter <LS>data class</> controls the physical area of the database
in which the table is stored. The parameter <LS>size category</>
specifies estimated space requirements for the table in the database.
This parameter controls the space reserved in the database when the
table is created. The size of the extents created when the table is
extended is dependent on the value entered here.

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?

Maintain the technical settings for your table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT601 - Maintain the data class and size category for table & ?

  The SAP error message DT601 indicates that there is an issue with the data class and size category settings for a database table in the Data Dictionary (DDIC). This error typically arises when you are trying to create or modify a table without properly defining its data class and size category.
  Cause:
  
  Missing Data Class and Size Category: The table you are trying to create or modify does not have a defined data class or size category.
  Incorrect Configuration: The data class and size category may not be set correctly according to the requirements of the table.
  Transport Issues: If the table definition is being transported from one system to another, the necessary settings may not have been included.
  
  Solution:
  To resolve the DT601 error, follow these steps:
  
  
  Access the Data Dictionary:
  
  Go to transaction code SE11 (Data Dictionary).
  
  
  
  Select the Table:
  
  Enter the name of the table that is causing the error and click on "Display" or "Change".
  
  
  
  Maintain Data Class and Size Category:
  
  In the table definition screen, look for the "Technical Settings" (you can find this option in the menu).
  In the Technical Settings dialog, you will see fields for "Data Class" and "Size Category".
  Select an appropriate data class (e.g., APPL0, APPL1, APPL2, etc.) based on the intended use of the table.
  Choose a suitable size category (e.g., 0, 1, 2, etc.) that reflects the expected size of the table.
  
  
  
  Save Changes:
  
  After making the necessary changes, save the table definition.
  
  
  
  Activate the Table:
  
  If required, activate the table to ensure that the changes take effect.
  
  
  
  Transport Changes:
  
  If you are working in a development environment and need to transport the changes to a quality or production environment, ensure that the transport request includes the updated table definition.
  
  
  
  Related Information:
  
  Data Class: This defines how the data is stored in the database (e.g., whether it is application data, master data, etc.).
  Size Category: This indicates the expected size of the table and helps the database optimize storage and performance.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE14 (Database Utility), and SE10 (Transport Organizer) for managing database objects and transports.
  
  By ensuring that the data class and size category are correctly set, you should be able to resolve the DT601 error and proceed with your table creation or modification.