How To Fix E2216 - Foreign key definition is not possible. Check value table &.

SAP Error Message - Details

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 216

• Message text: Foreign key definition is not possible. Check value table &.

What causes this issue?

Table &V1& was entered as value table for domain &V2&. However, there
is no key field pointing to this domain. This is, however, a
prerequisite for classifying a table as a value table and thus as value
range for a domain.

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?

The value table must be changed so that a key field points to the
domain itself. If an incorrect table was entered, that has no connectin
with the actual value table, you have to enter the correct table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E2216 - Foreign key definition is not possible. Check value table &. ?

  The SAP error message E2216, which states "Foreign key definition is not possible. Check value table &," typically occurs when you are trying to create a foreign key relationship in the Data Dictionary (DDIC) but the system detects an issue with the value table associated with the foreign key.
  Cause:
  
  Missing Value Table: The value table for the foreign key does not exist or is not defined correctly.
  Inconsistent Data Types: The data types of the fields in the foreign key relationship do not match.
  Field Length Mismatch: The lengths of the fields in the foreign key relationship are not compatible.
  Incorrect Table Definition: The table you are trying to reference may not be defined as a value table or may not have the necessary primary key.
  Non-Existent Table: The table you are trying to reference may not exist in the system.
  
  Solution:
  
  Check Value Table: Verify that the value table you are trying to reference exists and is correctly defined in the Data Dictionary. You can do this by navigating to the Data Dictionary (transaction SE11) and checking the table definition.
  Verify Data Types: Ensure that the data types of the fields in the foreign key relationship match. You can check this in the Data Dictionary.
  Check Field Lengths: Make sure that the lengths of the fields in the foreign key relationship are compatible.
  Define Value Table: If the value table is missing, you may need to create it or define it correctly in the Data Dictionary.
  Review Table Relationships: Ensure that the table you are trying to reference is set up correctly with the necessary primary key and is defined as a value table if applicable.
  Consult Documentation: If you are unsure about the definitions or relationships, consult SAP documentation or your technical team for guidance.
  
  Related Information:
  
  Transaction Codes: Use transaction SE11 to access the Data Dictionary and check table definitions.
  Foreign Key Relationships: Understand how foreign key relationships work in SAP and the importance of value tables.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to foreign key definitions.
  Debugging: If the issue persists, consider debugging the process to identify any underlying problems.
  
  By following these steps, you should be able to resolve the E2216 error and successfully define the foreign key relationship in your SAP system.