How To Fix AH429 - Operand value for date &1 must not be deleted

AH429 - Overview

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 429

• Message text: Operand value for date &1 must not be deleted

What causes this issue?

In operand &V3&, the operand value for date &v1& must not be deleted
because changes are not permitted before the date &v2&.
Date &V2& can contain the following:
Start of contract: Maintenance of operand values is not possible until
start of the contract.
End of last billing period: Maintenance of operand values is permitted
in the current billing period only.
End of last backbilling period: Maintenance of operand values is
permitted in the current backbilling period only.

System Response

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

AH429 - Details

• The SAP error message AH429, which states "Operand value for date &1 must not be deleted," typically occurs in the context of data processing or configuration where a date operand is expected but is either missing or incorrectly configured. This error can arise in various scenarios, such as during the execution of a report, transaction, or when working with certain modules in SAP.
  
  Cause:
  
  Missing Date Value: The error often indicates that a required date value (represented by &1) is not provided or has been deleted from the relevant configuration or data entry.
  Incorrect Configuration: The configuration settings for a particular process or transaction may not be set up correctly, leading to the system expecting a date that is not available.
  Data Integrity Issues: There may be issues with data integrity where the expected date values have been inadvertently removed or corrupted.
  
  
  Solution:
  
  Check Configuration: Review the configuration settings related to the transaction or report that