How To Fix FDT_HANA194 - &1: Expression must not be used with parameter or source field

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_HANA - BRFplus: HANA Integration

• Message number: 194

• Message text: &1: Expression must not be used with parameter or source field

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 FDT_HANA194 - &1: Expression must not be used with parameter or source field ?

  The SAP error message FDT_HANA194 typically occurs in the context of SAP HANA when working with Field-Based Data Transformation (FDT) or similar data processing scenarios. The error message indicates that there is an issue with the use of an expression in conjunction with a parameter or source field.
  Cause:
  The error arises when an expression is incorrectly defined or used in a way that is not compatible with the expected input types. Specifically, it suggests that the expression you are trying to use cannot be combined with a parameter or a source field. This can happen due to:
  
  Incorrect Expression Syntax: The expression may not be formulated correctly according to the rules of the language or framework you are using.
  Data Type Mismatch: The data types of the expression and the parameter/source field may not be compatible.
  Contextual Misuse: The expression may be used in a context where it is not allowed, such as in a place where a simple field reference is expected.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Review the Expression: Check the syntax of the expression you are using. Ensure that it adheres to the expected format and rules for expressions in SAP HANA.
  
  
  Check Data Types: Verify that the data types of the expression and the parameter/source field are compatible. You may need to cast or convert data types to ensure compatibility.
  
  
  Contextual Validation: Ensure that the expression is being used in the correct context. If the expression is not allowed in the current context, consider restructuring your logic or using a different approach.
  
  
  Consult Documentation: Refer to the SAP HANA documentation or the specific documentation for the tool you are using (e.g., SAP Data Services, SAP BW) to understand the limitations and requirements for expressions.
  
  
  Debugging: If possible, use debugging tools to trace the execution and identify where the error is occurring. This can provide insights into what might be going wrong.
  
  
  Seek Help from Community or Support: If you are unable to resolve the issue, consider reaching out to the SAP community forums or SAP support for assistance. Provide them with details about your expression, the context in which it is used, and any relevant data types.
  
  
  Related Information:
  
  SAP HANA Documentation: Review the official SAP HANA documentation for guidelines on expressions and data transformations.
  SAP Community: Engage with the SAP Community for discussions and solutions related to similar issues.
  SAP Notes: Check for any SAP Notes that might address this specific error or provide additional context.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.