How To Fix AD731 - Foreign key &-& (do not make any more entries on foreign key screen)

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 731

• Message text: Foreign key &-& (do not make any more entries on foreign key screen)

What causes this issue?

It does not make sense to specify a cardinality for a foreign key of
type DYNP. The DYNP dependency factor does not indicate a foreign key
in the conventional sense, but rather a linking of tables consisting
only of the foreign key definition that acts like a check during screen
entry using the mask processor. This applies, for example, to a
foreign key definition for an internal table that does not refer to the
data base.
Apart from the foreign key definition, the actual relationship between
tables consists of the dependency factor, the cardinality, and possibly
the short text and documentation which describe the foreign key in more
detail.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD731 - Foreign key &-& (do not make any more entries on foreign key screen) ?

  The SAP error message AD731 indicates a foreign key constraint violation. This typically occurs when you are trying to enter a value in a field that is supposed to reference a value in another table, but the value you are trying to enter does not exist in the referenced table. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing Reference Data: The value you are trying to enter does not exist in the foreign key table. For example, if you are trying to enter a customer ID that does not exist in the customer master data.
  Incorrect Data Entry: There may be a typo or incorrect value being entered that does not match any existing records in the foreign key table.
  Data Consistency Issues: There may be inconsistencies in the data due to previous deletions or updates that have not been properly handled.
  
  Solution:
  
  Check the Foreign Key Table: Verify that the value you are trying to enter exists in the corresponding foreign key table. You can do this by querying the table directly or using transaction codes like SE11 (Data Dictionary) to check the table structure and contents.
  Correct the Entry: If the value does not exist, either enter a valid value that exists in the foreign key table or create the necessary record in the foreign key table before making the entry.
  Review Data Entry Process: Ensure that the data entry process is being followed correctly and that users are aware of the valid values that can be entered.
  Consult with Functional Team: If you are unsure about the correct values or the foreign key relationships, consult with the functional team or a SAP consultant who can provide guidance on the data model.
  Check for Customizations: If your SAP system has custom developments or enhancements, ensure that these are not affecting the foreign key relationships.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), or SE80 (Object Navigator) to explore the relevant tables and their relationships.
  Foreign Key Relationships: Understanding the foreign key relationships in your data model is crucial. You can find this information in the Data Dictionary (SE11) under the "Foreign Keys" tab for the relevant table.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific error message or transaction you are working with.
  Documentation: Review the documentation for the specific module you are working in, as different modules may have different foreign key constraints and requirements.
  
  By following these steps, you should be able to resolve the AD731 error and ensure that your data entries comply with the foreign key constraints in your SAP system.