How To Fix OQ_C419 - Tank &1 of location &2 is defined as both a parent and a child tank

SAP Error Message - Details

• Message type: E = Error

• Message class: OQ_C - IS-Oil SSR : Message pool Fuels

• Message number: 419

• Message text: Tank &1 of location &2 is defined as both a parent and a child tank

What causes this issue?

Tank &SYST-MSGV1& of location &SYST-MSGV2& has a different storage
object assigned to it and is also assigned to another storage object. at
the same time. This means that the system cannot determine whether it is
a "child" tank or "parent" tank.

System Response

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

How to fix this error?

Correct the storage object assignments for location &SYST-MSGV2&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OQ_C419 - Tank &1 of location &2 is defined as both a parent and a child tank ?

  The SAP error message OQ_C419 indicates that there is a configuration issue with the tank management setup in the SAP system. Specifically, it states that a tank is defined as both a parent and a child tank, which creates a logical conflict in the hierarchy of tank management.
  Cause:
  
  Hierarchical Conflict: In SAP's tank management, tanks can be organized in a parent-child relationship. A parent tank can contain child tanks, but a tank cannot simultaneously be a parent to another tank and a child of a different parent. This error arises when the same tank is mistakenly configured to serve both roles.
  Data Entry Error: This could be due to incorrect data entry during the setup of tank master records, where the same tank ID is assigned as both a parent and a child.
  Configuration Issues: There may be issues in the configuration settings of the tank management module that allow for this contradictory setup.
  
  Solution:
  
  Review Tank Configuration: Check the configuration of the tank in question. You can do this by navigating to the tank master data in SAP and reviewing its parent-child relationships.
  
  Use transaction code O3U1 (or the relevant transaction for tank management) to access the tank master data.
  
  
  Correct the Hierarchy: If you find that the tank is incorrectly set as both a parent and a child, you will need to correct this by:
  
  Removing the tank from one of the roles (either as a parent or as a child).
  Ensure that the tank is only defined in one role to maintain a clear hierarchy.
  
  
  Check Related Tanks: If the tank is part of a larger network of tanks, ensure that all related tanks are correctly configured to avoid similar issues.
  Test Changes: After making the necessary changes, test the configuration to ensure that the error message no longer appears and that the tank management functions as expected.
  
  Related Information:
  
  Documentation: Refer to SAP documentation on tank management for detailed guidelines on setting up tank hierarchies.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Support: If the issue persists after making corrections, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to resolve the OQ_C419 error and ensure that your tank management setup is correctly configured.