How To Fix IM520 - Activity end is nefore desired notification start

SAP Error Message - Details

• Message type: E = Error

• Message class: IM - Maintenance notifications

• Message number: 520

• Message text: Activity end is nefore desired notification start

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

The system informs you of any discrepancies between the planned dates
for the activity and the notification, because it makes sense for the
activity to fall before or at the same time as the end of the
notification. The system will continue processing, even if you keep the
date entries as they are now.

How to fix this error?

Check whether you do want to change the planned end date of the activity
or the planned start date of the notification and overtype the date if
necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IM520 - Activity end is nefore desired notification start ?

  The SAP error message IM520 ("Activity end is before desired notification start") typically occurs in the context of maintenance management or project management within the SAP system. This error indicates that there is a conflict between the scheduled end date of an activity and the start date of a related notification. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Date Configuration: The end date of the activity is set to a date that is earlier than the start date of the notification. This can happen due to incorrect data entry or scheduling conflicts.
  Dependencies: There may be dependencies or relationships between activities and notifications that are not properly configured, leading to this conflict.
  System Settings: The system may have specific settings or rules that enforce certain date relationships, which are being violated.
  
  Solution:
  
  Check Dates: Review the dates of both the activity and the notification. Ensure that the end date of the activity is set to a date that is equal to or later than the start date of the notification.
  Adjust Scheduling: If the dates are incorrect, adjust the scheduling of either the activity or the notification to resolve the conflict.
  Review Dependencies: Check for any dependencies or relationships between the activity and the notification. Make sure they are correctly defined and do not conflict with each other.
  Consult Documentation: Refer to SAP documentation or your organization's guidelines for managing activities and notifications to ensure compliance with best practices.
  User Authorization: Ensure that you have the necessary permissions to make changes to the activity or notification if you are unable to edit them.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IW21 (Create Notification), IW22 (Change Notification), and IW31 (Create Order) to manage notifications and activities.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  Training: Consider training or resources on SAP PM (Plant Maintenance) or SAP PS (Project System) modules to better understand how to manage activities and notifications effectively.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth assistance.