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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN187 - An incorrect object key was entered for object type & ?

  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 archived, it may lead to this error.
  
  Solution:
  
  Verify Object Key: Double-check the object key you are entering. Ensure that it is correctly formatted and corresponds to the correct object type.
  Check Object Type: Make sure you are using the correct object type for the key you are entering. Refer to the documentation or system help to confirm the expected object type.
  Use Search Functions: Utilize SAP's search functions (like F4 help) to find the correct object key. This can help ensure that you are entering a valid key.
  Check Authorizations: Ensure that you have the necessary authorizations to access the object. If you suspect authorization issues, contact your SAP security administrator.
  Consult with IT Support: If the issue persists, it may be necessary to consult with your IT support team or SAP Basis team to check for any underlying data consistency issues or system errors.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like CJ20N (Project Builder), CN41 (Project Structure), or others related to project management.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Refer to SAP Help documentation for detailed information on object types and their keys, as well as best practices for data entry.
  
  By following these steps, you should be able to identify the cause of the CN187 error and take appropriate action to resolve it.