How To Fix AD607 - Field & may not be a key field

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 607

• Message text: Field & may not be a key field

What causes this issue?

You have defined the data field as a key field.

System Response

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

How to fix this error?

Remove the key indicator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD607 - Field & may not be a key field ?

  The SAP error message AD607 ("Field & may not be a key field") typically occurs when there is an attempt to define a field as a key field in a database table or structure, but the field does not meet the necessary criteria to be a key field. This can happen in various contexts, such as when creating or modifying database tables, views, or structures in the Data Dictionary (SE11).
  Cause:
  
  Field Type: The field may not be of a type that can be used as a key field. For example, key fields usually need to be of a certain data type (e.g., character, numeric) and should not be nullable.
  Field Length: The length of the field may not be appropriate for a key field. Key fields often have specific length requirements.
  Field Properties: The field may have properties that disqualify it from being a key field, such as being a reference field or having certain technical attributes.
  Existing Key Fields: If the table already has key fields defined, the system may restrict adding additional key fields that do not meet the criteria.
  
  Solution:
  
  Check Field Definition: Review the definition of the field in the Data Dictionary (SE11). Ensure that the field type, length, and properties are appropriate for a key field.
  Modify Field Attributes: If necessary, modify the field attributes to make it suitable for being a key field. This may involve changing the data type, length, or other properties.
  Consult Documentation: Refer to SAP documentation or help resources for specific requirements regarding key fields in database tables.
  Use Alternative Fields: If the field cannot be made a key field, consider using a different field that meets the criteria for the key.
  
  Related Information:
  
  Data Dictionary (SE11): This is the transaction code used to access the Data Dictionary in SAP, where you can create and modify tables, views, and structures.
  Key Fields: Key fields are essential for uniquely identifying records in a database table. They are used in primary keys and must be defined correctly to ensure data integrity.
  SAP Notes: Check SAP Notes for any specific issues or updates related to this error message, as there may be patches or updates that address related problems.
  
  If you continue to experience issues after checking the above points, consider reaching out to your SAP Basis or development team for further assistance.