How To Fix SAMQP_MESSAGE034 - Select only one data type for importing parameter: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SAMQP_MESSAGE -

• Message number: 034

• Message text: Select only one data type for importing parameter: &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 SAMQP_MESSAGE034 - Select only one data type for importing parameter: &1 ?

  The SAP error message SAMQP_MESSAGE034 indicates that there is an issue with the data types being used in an import parameter of a function module or method. Specifically, it suggests that multiple data types have been specified for a single import parameter, which is not allowed.
  Cause:
  The error typically arises when:
  
  A function module or method is defined with an import parameter that is expected to accept only one specific data type, but the calling program or function is attempting to pass multiple data types.
  There may be a mismatch between the expected data type in the function module and the actual data type being passed from the calling program.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Function Module/Method Definition:
  
  Review the definition of the function module or method to understand the expected data type for the import parameter. Ensure that it is defined correctly.
  
  
  
  Review the Calling Program:
  
  Inspect the code in the calling program where the function module is invoked. Ensure that you are passing a single data type that matches the expected type of the import parameter.
  
  
  
  Data Type Consistency:
  
  Make sure that the variable or value you are passing to the import parameter is of the correct type. If the function expects a specific type (e.g., CHAR, INT, etc.), ensure that you are not inadvertently passing a different type.
  
  
  
  Type Casting:
  
  If necessary, perform type casting or conversion to ensure that the data being passed matches the expected type.
  
  
  
  Debugging:
  
  Use debugging tools in SAP to step through the code and identify where the data type mismatch occurs. This can help pinpoint the exact location of the issue.
  
  
  
  Documentation:
  
  Refer to the SAP documentation for the specific function module or method to understand its parameters and expected data types.
  
  
  
  Related Information:
  
  Function Module Documentation: Check the SAP Help Portal or the specific documentation for the function module you are using to get detailed information about its parameters.
  Data Type Definitions: Familiarize yourself with the various data types in ABAP (Advanced Business Application Programming) to avoid similar issues in the future.
  SAP Community: Engage with the SAP Community forums for additional insights or similar issues faced by other developers.
  
  By following these steps, you should be able to identify and resolve the cause of the SAMQP_MESSAGE034 error in your SAP environment.