How To Fix 1F042 - The specified intervals may not overlap

SAP Error Message - Details

• Message type: E = Error

• Message class: 1F - BKK: Beziehungen

• Message number: 042

• Message text: The specified intervals may not overlap

What causes this issue?

When creating a hierarchy using a copy of another hierarchy, the
intervals can't overlap. When you create a hierarchy using a copy, all
of the source accounts underneath the root node are copied to the new
hierarchy. These accounts would then be present in both hierarchies
and therefore contain overlapping intervals. However, there may not be
any accounts within a relation type valid for the same day in more than
one hierarchy.

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 1F042 - The specified intervals may not overlap ?

  The SAP error message 1F042 ("The specified intervals may not overlap") typically occurs in the context of scheduling or planning activities, such as when defining time intervals for production orders, maintenance plans, or other scheduling-related functions. This error indicates that the time intervals you are trying to define or modify overlap with existing intervals, which is not allowed in the system.
  Cause:
  
  Overlapping Time Intervals: The most common cause is that the start and end times of the intervals you are trying to create or modify overlap with existing intervals in the system.
  Incorrect Data Entry: There may be a mistake in the data entry, such as entering the wrong dates or times.
  Configuration Issues: In some cases, the configuration settings in the system may not allow overlapping intervals due to business rules or constraints.
  
  Solution:
  
  Check Existing Intervals: Review the existing time intervals in the system to identify any overlaps. You can do this by checking the relevant tables or transaction codes that display the intervals.
  Adjust Your Intervals: Modify the start and end times of the intervals you are trying to create or change to ensure they do not overlap with existing intervals.
  Data Validation: Ensure that the data you are entering is correct and does not inadvertently create overlaps.
  Consult Documentation: If you are unsure about the rules governing the intervals, consult the SAP documentation or your organization's guidelines for scheduling and planning.
  Use Transaction Codes: Utilize relevant transaction codes (like IW38 for maintenance orders or CO02 for production orders) to check and manage the intervals effectively.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  Testing: If you are making changes in a development or test environment, ensure that the changes are validated before moving to production.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth assistance.