How To Fix VQ303 - Object &1 not contained in the planning hierarchy!

VQ303 - Overview

• Message type: E = Error

• Message class: VQ - SD Archiving and Product Allocation

• Message number: 303

• Message text: Object &1 not contained in the planning hierarchy!

What causes this issue?

Object &v1& is not in the planning hierarchy of the info structure
&v2&.

System Response

No product allocation can be carried out for the product allocation
periods in which this product allocation object is entered. The system
issues an error message, telling you that the feature combination can
not be found in the planning hierarchy.

How to fix this error?

Check the settings in product allocation controlling for the product
allocation procedure and the step.
Extend the product allocation object with the additional features in
the planning hierarchy.

Error message extract from SAP system. Copyright SAP SE.

VQ303 - Details

• Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  VQ303 Object &1 not contained in the planning hierarchy
  
  
  Cause:
  This error occurs when you try to perform a planning activity (such as planning, data entry, or simulation) on an object (e.g., a cost center, profit center, or any planning object) that is not included in the defined planning hierarchy.
  In SAP planning applications (like Profit Center Planning, Cost Center Planning, or other versions of planning in SAP Controlling or SAP BW), the planning hierarchy defines which objects are valid for planning. If the object you are trying to plan for is not part of this hierarchy, the system cannot process the request and throws this error.
  
  Common Scenarios:
  
  The planning hierarchy was recently changed, and the object was removed or never added.
  You are trying to plan for an object that is outside the scope of the current planning version or planning area.
  The object