How To Fix CN875 - Standard network & not valid for external number assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 875

• Message text: Standard network & not valid for external number assignment

What causes this issue?

The number you are attempting to assign to the standard network &V1&
lies outside of the valid number range for external number assignment.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

Assign a number for the standard network that lies within the valid
number range.
If you do not know the valid number range, contact your system
administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN875 - Standard network & not valid for external number assignment ?

  The SAP error message CN875 ("Standard network & not valid for external number assignment") typically occurs when you are trying to create or modify a standard network in SAP that is not configured to allow external number assignment. This can happen in the context of project management and network planning within the SAP system.
  Cause:
  
  Number Assignment Configuration: The error usually arises because the number assignment for the network type is set to "internal" rather than "external." In SAP, networks can be assigned numbers either internally (automatically generated by the system) or externally (manually assigned by the user).
  Network Type Settings: The specific network type you are working with may not be configured to allow external number assignment.
  Project Profile Settings: The project profile associated with the project may have settings that restrict the number assignment method.
  
  Solution:
  To resolve the CN875 error, you can take the following steps:
  
  
  Check Network Type Configuration:
  
  Go to the configuration settings for the network type you are using. This can typically be found in the SAP IMG (Implementation Guide) under:
  Project System -> Structures -> Networks -> Define Network Types
  
  Ensure that the network type is set to allow external number assignment.
  
  
  
  Adjust Project Profile:
  
  Check the project profile settings that are being used for the project. You can find this in:
  Project System -> Structures -> Project Definition -> Define Project Profiles
  
  Make sure that the project profile allows for external number assignment for networks.
  
  
  
  Use Internal Number Assignment:
  
  If external number assignment is not necessary, consider using the internal number assignment option. This can be done by simply allowing the system to generate the network number automatically.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP Basis or Project System consultant to ensure that the settings align with your organization's requirements.
  
  
  
  Authorization Check:
  
  Ensure that you have the necessary authorizations to create or modify networks in the system.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CN01 (Create Network) or CN02 (Change Network) to work with networks.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues or provide additional guidance related to network configuration and number assignment.
  User Forums: Consider visiting SAP community forums or user groups for additional insights and shared experiences from other users who may have encountered the same issue.
  
  By following these steps, you should be able to resolve the CN875 error and successfully create or modify your standard network in SAP.