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

AD731 - Overview

• 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.

AD731 - Details

• 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