How To Fix CN187 - An incorrect object key was entered for object type &

CN187 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 187

• Message text: An incorrect object key was entered for object type &

What causes this issue?

An invalid object key has been entered in the command table for object
type &v1&, method &v2&.

System Response

INCLUDE NA_ALLG_NOVERARBEITUNG OBJECT DOKU ID TX

How to fix this error?

Enter a valid object key for object type &v1&.
&NOTE&
The object key identifies an object.
Object keys for:

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

WBS element
BAPI_WBS_ELEMENT-WBS_ELEMENT
Network
BAPI_NETWORK-NETWORK
Network activity
(Both arguments must be written directly behind each other in the
object key. Pay attention to the order.)
BAPI_NETWORK_ACTIVITY-NETWORK
BAPI_NETWORK_ACTIVITY-ACTIVITY
Relationship
(The arguments must be written directly behind each other in the object
key. Pay attention to the order.)
BAPI_NETWORK_RELATION-RELATION_TYPE
BAPI_NETWORK_RELATION-NETWORK_PREDECESSOR
BAPI_NETWORK_RELATION-ACTIVITY_PREDECESSOR
BAPI_NETWORK_RELATION-NETWORK_SUCCESSOR
BAPI_NETWORK_RELATION-ACTIVITY_SUCCESSOR

Error message extract from SAP system. Copyright SAP SE.

CN187 - Details

• The SAP error message CN187, which states "An incorrect object key was entered for object type &," typically occurs in the context of project management or related modules where object keys (such as WBS elements, networks, or activities) are used to identify specific objects in the system.
  
  Cause:
  
  Incorrect Object Key: The most common cause of this error is that the object key you entered does not exist in the system or is incorrectly formatted.
  Object Type Mismatch: The object key may belong to a different object type than what is expected. For example, you might be trying to enter a WBS element key where a network key is expected.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or access the object, leading to the perception that the object key is incorrect.
  Data Consistency Issues: If there are inconsistencies in the database or if the object has been deleted or