How To Fix FDT_HANA166 - &3: The mapped element &2 is not convertible to the type of DB field &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_HANA - BRFplus: HANA Integration

• Message number: 166

• Message text: &3: The mapped element &2 is not convertible to the type of DB field &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 FDT_HANA166 - &3: The mapped element &2 is not convertible to the type of DB field &1 ?

  The SAP error message FDT_HANA166 indicates that there is a type mismatch between the data being processed and the database field it is being mapped to. Specifically, the error message states that the mapped element (usually a field or variable in your data model) cannot be converted to the type of the database field it is intended to populate.
  Cause:
  
  Data Type Mismatch: The most common cause of this error is that the data type of the source field (mapped element) does not match the data type of the target database field. For example, trying to map a string to an integer field or a date to a string field.
  Incompatible Formats: Even if the data types are the same (e.g., both are strings), the format of the data might not be compatible. For instance, a date string in the format "MM/DD/YYYY" might not be convertible to a date field expecting "YYYY-MM-DD".
  Null Values: If the mapped element is null or empty and the target field does not allow nulls, this can also trigger the error.
  Data Length Issues: If the length of the data being mapped exceeds the maximum length defined for the target database field, this can cause conversion issues.
  
  Solution:
  
  Check Data Types: Verify that the data types of the mapped element and the target database field are compatible. You may need to adjust the data type in your data model or transformation logic.
  Format Conversion: If the data types are correct but the formats are not, implement a conversion function to ensure that the data is in the correct format before mapping.
  Handle Null Values: Ensure that null or empty values are handled appropriately. You may need to provide default values or modify the target field to allow nulls if applicable.
  Trim Data Length: If the data length is an issue, ensure that the data being mapped does not exceed the maximum length of the target field. You can use string manipulation functions to trim or truncate the data as necessary.
  Debugging: Use debugging tools or logs to trace the data flow and identify exactly where the conversion is failing. This can help pinpoint the specific field or value causing the issue.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on data types and conversion rules in SAP HANA.
  Data Mapping Guidelines: Review best practices for data mapping and transformation in SAP, especially when working with HANA databases.
  Community Forums: Check SAP community forums or support channels for similar issues and solutions shared by other users.
  
  By addressing the above points, you should be able to resolve the FDT_HANA166 error and ensure that your data mappings are correctly configured.