How To Fix FT326 - Field which has type & must be of the type C,D,N,S or T

SAP Error Message - Details

• Message type: E = Error

• Message class: FT - FI Table Maintenance Error Messages

• Message number: 326

• Message text: Field which has type & must be of the type C,D,N,S or T

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FT326 - Field which has type & must be of the type C,D,N,S or T ?

  The SAP error message FT326 indicates that a field in your SAP system is expected to have a specific data type (C, D, N, S, or T), but the value being processed does not conform to this requirement. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  
  Data Type Mismatch: The field in question is defined to accept only certain data types:
  
  C: Character
  D: Date
  N: Numeric
  S: String
  T: Time
  If the value being assigned to this field does not match one of these types, the error will occur.
  
  
  
  Incorrect Data Entry: Users may have entered data that does not conform to the expected format or type.
  
  
  Program Logic Error: If this error arises during the execution of a custom program or report, there may be a logic error in how data is being processed or assigned.
  
  
  Data Conversion Issues: If data is being converted from one type to another (e.g., from a string to a date), and the conversion fails, this error may be triggered.
  
  
  Solution:
  
  
  Check Data Entry: Review the data being entered into the field. Ensure that it matches the expected data type. For example, if the field expects a date, ensure that the input is in the correct date format.
  
  
  Review Program Logic: If the error occurs in a custom program, check the logic where the field is being populated. Ensure that the data being assigned is of the correct type.
  
  
  Data Validation: Implement validation checks before assigning values to the field. This can help catch errors before they trigger the FT326 message.
  
  
  Debugging: If you are a developer or have access to debugging tools, use the debugger to trace the execution of the program and identify where the incorrect data type is being assigned.
  
  
  Consult Documentation: Review the SAP documentation for the specific transaction or program to understand the expected data types for the fields involved.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this issue, especially if it is a known problem with a specific version of SAP.
  
  
  Related Information:
  
  Field Definitions: Understanding the data dictionary (SE11) can help clarify the expected data types for specific fields.
  Transaction Codes: Familiarize yourself with transaction codes related to the area where the error occurs (e.g., MM for materials management, SD for sales and distribution).
  User Exits and BAdIs: If the error is occurring in a standard SAP program, consider whether any user exits or BAdIs (Business Add-Ins) are being used that might affect data processing.
  
  By following these steps, you should be able to identify the cause of the FT326 error and implement a solution to resolve it.