How To Fix /ISDFPS/OM_PROXY042 - New assignment end date/time must be lower than original end date/time

/ISDFPS/OM_PROXY042 - Overview

• Message type: E = Error

• Message class: /ISDFPS/OM_PROXY -

• Message number: 042

• Message text: New assignment end date/time must be lower than original end date/time

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/OM_PROXY042 - New assignment end date/time must be lower than original end date/time ?

  The SAP error message /ISDFPS/OM_PROXY042 indicates that there is an issue with the assignment end date/time in a process related to the SAP Integrated Business Planning (IBP) or SAP S/4HANA system. Specifically, the error states that the new assignment end date/time must be lower than the original end date/time. This typically occurs when you are trying to update or create an assignment (such as a resource, order, or task) with an end date that is not earlier than the existing end date.
  
  Cause:
  
  Date Validation: The system is enforcing a rule that the new end date/time must be earlier than the existing end date/time. This is likely a business rule to ensure that assignments do not overlap or extend beyond their original time frame.
  Data Entry Error: The user may have mistakenly entered an incorrect date/time that does not comply with the required logic.
  System Configuration: There may be specific configurations or settings in