How To Fix CN387 - Deblock acc. assignment in operation &1 rejected, as network &2 blocked

CN387 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 387

• Message text: Deblock acc. assignment in operation &1 rejected, as network &2 blocked

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.

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

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CN387 - Details

• The SAP error message CN387 indicates that there is a problem with the account assignment in a network operation due to the network being blocked. This typically occurs in the context of project systems or production planning where network activities are involved.
  
  Cause:
  The error message CN387 is triggered when:
  
  The network (identified by &2) is in a blocked status, which prevents any further processing or changes to the account assignments of the operations within that network.
  This blocking can occur due to various reasons, such as:
  The network is set to "Blocked" status manually by a user.
  The network is part of a project that is in a blocked state.
  There are outstanding issues or errors in related documents that need to be resolved before the network can be unblocked.
  
  
  
  
  Solution:
  To resolve the CN387 error, you can take the following steps:
  
  
  Check Network Status:
  
  Go to the network in question (using transaction code CN03 or CN21) and check its