How To Fix D-120 - Invalid dialog type

SAP Error Message - Details

• Message type: E = Error

• Message class: D- -

• Message number: 120

• Message text: Invalid dialog type

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 D-120 - Invalid dialog type ?

  The SAP error message D-120 "Invalid dialog type" typically occurs when there is an issue with the dialog type specified in a transaction or program. This error can arise in various contexts, such as when working with screen elements, dialog programming, or when calling function modules that require a specific dialog type.
  Causes:
  
  Incorrect Dialog Type: The dialog type specified in the program or transaction may not be valid or recognized by the system.
  Configuration Issues: There may be configuration issues in the SAP system that lead to the dialog type being unrecognized.
  Custom Development: If there are custom programs or enhancements, they may not be correctly handling dialog types.
  Missing or Incomplete Data: Required data for the dialog type may be missing or incomplete.
  
  Solutions:
  
  Check Dialog Type: Verify the dialog type being used in the program or transaction. Ensure that it is a valid type recognized by SAP.
  Review Custom Code: If the error occurs in a custom program, review the code to ensure that the dialog type is being set correctly.
  Transaction Configuration: Check the configuration of the transaction or program in the SAP system to ensure that it is set up correctly.
  SAP Notes: Search for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  Debugging: If you have access to debugging tools, you can debug the program to identify where the invalid dialog type is being set or called.
  Consult Documentation: Review SAP documentation or help resources for guidance on valid dialog types and their usage.
  
  Related Information:
  
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide insights based on the specific context of your system.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  System Logs: Check system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to identify the cause of the D-120 error and implement a suitable solution.