How To Fix CPWB302 - Select material-routing allocation

SAP Error Message - Details

• Message type: E = Error

• Message class: CPWB - General Workbench Messages

• Message number: 302

• Message text: Select material-routing allocation

What causes this issue?

Before you can execute the chosen function, you must select at least
one material-routing allocation. You have not selected a material-
routing allocation.

System Response

The chosen function cannot be executed.

How to fix this error?

Select at least one material-routing allocation.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CPWB302 - Select material-routing allocation ?

  The SAP error message CPWB302, which states "Select material-routing allocation," typically occurs in the context of production planning and control, particularly when working with the Capacity Planning Workbench (CPWB) in SAP. This error indicates that the system is unable to find a valid allocation of materials to the routing for the production order or planned order you are trying to process.
  Causes:
  
  
  Missing Material-Routing Allocation: The most common cause is that there is no valid allocation of the material to the routing in the system. This can happen if the routing has not been properly defined or if the material is not assigned to the routing.
  
  
  Incorrect Configuration: There may be issues with the configuration of the routing or the material master data, leading to a lack of proper linkage.
  
  
  Data Inconsistencies: There could be inconsistencies in the master data, such as missing or incorrect entries in the material master or routing.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or select the material-routing allocation.
  
  
  Solutions:
  
  
  Check Material-Routing Assignment:
  
  Go to the routing transaction (e.g., CA03) and check if the material is correctly assigned to the routing.
  Ensure that the routing is active and valid for the material in question.
  
  
  
  Verify Master Data:
  
  Check the material master data (transaction MM03) to ensure that all necessary information is correctly maintained.
  Ensure that the relevant views (e.g., Basic Data, MRP, Work Scheduling) are properly filled out.
  
  
  
  Review Configuration:
  
  If you have access, review the configuration settings in the Production Planning module to ensure that the settings for material and routing are correctly defined.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the material and routing data.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on the error message and related processes.
  
  
  
  Contact Support:
  
  If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CA03 (Display Routing), MM03 (Display Material), and C223 (Maintain Material-Routing Allocation).
  SAP Notes: Check for any SAP Notes related to this error message for potential bug fixes or patches.
  Training and Documentation: Review training materials or documentation related to production planning and routing in SAP to better understand the processes involved.
  
  By following these steps, you should be able to identify the cause of the CPWB302 error and implement a solution to resolve it.