How To Fix DMC_RT_MSG012 - Output length is determined for data type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_MSG - DMC: Runtime Object Messages

• Message number: 012

• Message text: Output length is determined for data type &1

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 DMC_RT_MSG012 - Output length is determined for data type &1 ?

  The SAP error message DMC_RT_MSG012, which states "Output length is determined for data type &1," typically occurs in the context of data management and transformation processes, particularly when dealing with data types in SAP Data Management or SAP Data Intelligence.
  Cause:
  This error usually arises when there is a mismatch or an issue with the output length of a data type in a transformation or data flow. The system is unable to determine the appropriate output length for the specified data type, which can be due to:
  
  Incorrect Data Type Definition: The data type may not be defined correctly in the source or target system.
  Incompatible Data Types: There may be an incompatibility between the source and target data types, especially if they have different lengths or formats.
  Missing Metadata: The metadata for the data type may be incomplete or missing, preventing the system from determining the output length.
  Transformation Logic Issues: The logic defined in the transformation may not correctly handle the data types involved.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Data Type Definitions: Verify that the data types used in the transformation or data flow are correctly defined in both the source and target systems. Ensure that they match in terms of length and format.
  
  
  Review Transformation Logic: Examine the transformation logic to ensure that it correctly handles the data types. Make adjustments if necessary to ensure compatibility.
  
  
  Update Metadata: If the metadata for the data type is incomplete, update it to include all necessary information, including the output length.
  
  
  Test with Sample Data: Run tests with sample data to see if the issue persists. This can help identify if the problem is with specific data entries.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for any known issues or additional guidance related to this error message.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  SAP Data Management: Understanding how data types are defined and managed within SAP Data Management can help prevent such errors.
  Data Transformation: Familiarity with data transformation processes and best practices can aid in troubleshooting issues related to data types.
  SAP Community: Engaging with the SAP community forums can provide insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the DMC_RT_MSG012 error in your SAP environment.