How To Fix WB2_ASGT120 - Predecessor &1 &2 &3 of shadow item &4 cannot be changed.

WB2_ASGT120 - Overview

• Message type: E = Error

• Message class: WB2_ASGT - Shadow items ans assignments

• Message number: 120

• Message text: Predecessor &1 &2 &3 of shadow item &4 cannot be changed.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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WB2_ASGT120 - Details

• The SAP error message WB2_ASGT120 indicates that there is an issue with changing a predecessor of a shadow item in the context of project management or logistics. This error typically arises in scenarios involving project structures, such as when working with network activities or project scheduling.
  
  Cause:
  The error message "Predecessor &1 &2 &3 of shadow item &4 cannot be changed" usually occurs due to one of the following reasons:
  
  Locked or Inactive Predecessor: The predecessor item you are trying to change may be locked or inactive, preventing any modifications.
  Dependency Constraints: There may be existing dependencies or constraints that prevent changes to the predecessor relationship.
  Shadow Item Restrictions: Shadow items are often used in specific contexts (like project planning) and may have restrictions on how they can be modified.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the predecessor item.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check