How To Fix PSSC_NET172 - NCD &1 not found in local buffer table CT_NCD_OLD (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: PSSC_NET - Net Calculation

• Message number: 172

• Message text: NCD &1 not found in local buffer table CT_NCD_OLD (internal error)

What causes this issue?

The <DS:GLOS.49A5F736876A4422E10000000A421392>net calculation document
</> (NCD) &V1& was not found in an internal buffer table.

System Response

The system does not execute the
<DS:GLOS.49A5BAE5A2B21546E10000000A421392>net calculation</>.

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

Check if this problem has been caused by a customer-specific adjustment.
If this is not the case, contact SAP and specify the NCD <LS>ObjectID
</>.
The problem has occured in class &V2&, method &V3&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PSSC_NET172 - NCD &1 not found in local buffer table CT_NCD_OLD (internal error) ?

  The SAP error message PSSC_NET172 indicates that a specific NCD (Network Change Document) is not found in the local buffer table CT_NCD_OLD. This is an internal error that can occur in various scenarios, particularly when dealing with network-related data in SAP.
  Cause:
  
  Data Inconsistency: The NCD might not have been properly created or might have been deleted, leading to a situation where the system cannot find it in the expected buffer.
  Buffer Issues: The local buffer table CT_NCD_OLD may not have been updated correctly, or there may be a synchronization issue between the database and the buffer.
  Configuration Issues: There could be a misconfiguration in the network settings or related modules that is causing the system to look for an NCD that does not exist.
  System Bugs: There may be a bug in the SAP system that is causing this error to occur under certain conditions.
  
  Solution:
  
  Check NCD Existence: Verify if the NCD in question actually exists in the database. You can do this by querying the relevant tables directly (e.g., using transaction codes like SE11 or SE16).
  Buffer Refresh: Try refreshing the buffer. You can do this by using transaction code SM12 to delete any locks and then using SM21 to check the system log for any related errors.
  Recreate NCD: If the NCD is missing, you may need to recreate it. This can involve re-running the process that generates the NCD.
  Check Configuration: Review the configuration settings related to network changes and ensure that everything is set up correctly.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that address this specific error. There may be updates or fixes available that resolve the issue.
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with the error message details and any relevant logs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), SM12 (Lock Entries), and SM21 (System Log) for troubleshooting.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Documentation: Review SAP documentation related to network change documents and the specific module you are working with to understand the expected behavior and configurations.
  
  By following these steps, you should be able to diagnose and potentially resolve the PSSC_NET172 error in your SAP system.