How To Fix GH019 - Field assignment for foreign is not unique! Check suggestion!

SAP Error Message - Details

• Message type: E = Error

• Message class: GH - Help functions and tools in FI-SL

• Message number: 019

• Message text: Field assignment for foreign is not unique! Check suggestion!

What causes this issue?

The creation of foreign key definition is not possible.
When creating a foreign key, all the key fields in the check
table must be assigned to the foreign key fields (the fields to be
checked from the table itself or also possibly from a foreign table),
where the assignment takes place using the shared domains of the field
pairs.

System Response

The system tries to generate automatically a suggestion for this
assignment. There are several selection possibilities in the foreign
key table for one or more check table fields; one of them is suggested
by the system.

How to fix this error?

Check the field assignment and correct the suggestion, if necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GH019 - Field assignment for foreign is not unique! Check suggestion! ?

  The SAP error message GH019, which states "Field assignment for foreign is not unique! Check suggestion!", typically occurs in the context of data entry or configuration in SAP, particularly when dealing with foreign key relationships or assignments in tables. This error indicates that there is an issue with the uniqueness of the field assignments for foreign keys in the database.
  Cause:
  
  Non-Unique Entries: The error usually arises when there are multiple entries in the database that match the criteria for a foreign key assignment, leading to ambiguity in the relationship.
  Configuration Issues: It may also occur due to incorrect configuration in the data model or when defining relationships between tables.
  Data Integrity Violations: If the data being entered or processed violates the integrity constraints defined in the database, this error can be triggered.
  
  Solution:
  
  Check Data Entries: Review the entries in the relevant tables to ensure that there are no duplicate records that could cause ambiguity in the foreign key assignment.
  Review Configuration: Go through the configuration settings related to the foreign key relationships to ensure they are set up correctly and uniquely.
  Use Suggestions: The error message suggests checking the system's suggestions. SAP may provide hints or recommendations on how to resolve the issue, so be sure to review those.
  Data Cleanup: If duplicates are found, you may need to clean up the data by removing or consolidating duplicate entries.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the module or transaction you are working with.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using specific transaction codes (e.g., SE11 for Data Dictionary, SE14 for Database Utility) to manage database tables and relationships.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored assistance based on your specific system configuration and data.
  
  By following these steps, you should be able to identify the root cause of the GH019 error and implement a solution to resolve it.