How To Fix SMT034 - Field mappings cannot be combined with transformation methods

SAP Error Message - Details

• Message type: E = Error

• Message class: SMT -

• Message number: 034

• Message text: Field mappings cannot be combined with transformation methods

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 SMT034 - Field mappings cannot be combined with transformation methods ?

  The SAP error message SMT034, which states "Field mappings cannot be combined with transformation methods," typically occurs in the context of data transformation processes, particularly when using the SAP Data Services or SAP S/4HANA systems. This error indicates that there is a conflict in the way field mappings and transformation methods are being applied in your data flow or transformation logic.
  
  Cause:
  The error arises when you attempt to use both field mappings and transformation methods in a way that is not allowed. Specifically, this can happen if:
  
  You are trying to apply a transformation method (like a function or calculation) to a field that is already being mapped directly.
  The configuration of the data flow is set up in a way that does not support the combination of these two approaches.
  
  
  Solution:
  To resolve the SMT034 error, you can take the following steps:
  
  
  Review the Data Flow: Check the data flow or transformation logic where the