How To Fix GG620 - The foreign key definition for data field & contains errors

GG620 - Overview

• Message type: E = Error

• Message class: GG - Messages for FI-SL customizing

• Message number: 620

• Message text: The foreign key definition for data field & contains errors

What causes this issue?

The table definition for table &V2& is incorrect. The error refers to
value field &V1&.
Possible errors:
a) The dependency factor of the foreign key is not 'OPT'.
b) The cardinality of the foreign key is not 'CN'.

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?

Please define the foreign key for value field &V1& according to the
above information.

Error message extract from SAP system. Copyright SAP SE.

GG620 - Details

• The SAP error message GG620 indicates that there is an issue with the foreign key definition for a data field in your database table. This error typically arises during the creation or modification of database tables or when trying to activate a data dictionary object (like a table or view) that has foreign key relationships defined incorrectly.
  Causes of Error GG620
  
  
  Incorrect Foreign Key Definition: The foreign key may reference a non-existent primary key or a field that does not match the data type or length of the primary key it is supposed to reference.
  
  
  Inconsistent Data Types: The data types of the foreign key field and the referenced primary key field must match. If they do not, this error will occur.
  
  
  Missing Primary Key: The table that the foreign key is referencing may not have a primary key defined, or the primary key may have been deleted or modified.
  
  
  Field Length Mismatch: The length