How To Fix DT314 - For. &-& (& and & are of different lengths)

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 314

• Message text: For. &-& (& and & are of different lengths)

What causes this issue?

When assigning foreign key fields to the key fields of the check table,
the corresponding fields must have the same data type and length. In
the case of the field of the foreign key table listed in the message
and the key field of the check table, the lengths are different.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Correct the foreign key definition and activate the foreign key table
again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT314 - For. &-& (& and & are of different lengths) ?

  The SAP error message DT314 typically indicates a data type mismatch or inconsistency in the lengths of fields being compared or processed. This error often arises in scenarios involving data transfers, table updates, or when working with structures that have fields of different lengths.
  Cause:
  The error message "DT314 For. &-& (& and & are of different lengths)" suggests that there is an attempt to compare or manipulate two fields (represented by the placeholders & and &) that have different lengths. This can occur in various situations, such as:
  
  Field Length Mismatch: When two fields are defined with different lengths in the database or in the ABAP program.
  Data Type Incompatibility: When trying to assign or compare values of different data types (e.g., a character field with a numeric field).
  Concatenation Issues: When concatenating strings or fields of different lengths without proper handling.
  
  Solution:
  To resolve the DT314 error, you can take the following steps:
  
  
  Check Field Definitions: Review the definitions of the fields involved in the operation. Ensure that they have compatible lengths and data types. You can do this by checking the data dictionary (SE11) for the relevant tables or structures.
  
  
  Adjust Lengths: If possible, adjust the lengths of the fields to ensure they match. This may involve modifying the database table or the structure definition in the ABAP program.
  
  
  Use Data Conversion: If the fields must remain different lengths, consider using data conversion functions to handle the values appropriately. For example, you can use CONCATENATE or SHIFT statements to manage string lengths.
  
  
  Debugging: If the error occurs during runtime, use the ABAP debugger to trace the execution and identify where the mismatch occurs. This can help you pinpoint the exact line of code causing the issue.
  
  
  Error Handling: Implement error handling in your code to manage situations where data length mismatches might occur, allowing for graceful degradation or informative error messages.
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) to investigate the definitions and logic related to the error.
  ABAP Documentation: Refer to the SAP Help Portal or ABAP documentation for more information on data types and handling data length issues.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to the DT314 error or provide patches and updates.
  
  By following these steps, you should be able to identify and resolve the cause of the DT314 error in your SAP environment.