How To Fix WRF_APC320 - You cannot create new assignments

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 320

• Message text: You cannot create new assignments

What causes this issue?

The purchasing list item has been released and subsequent purchasing
processes have started.

System Response

You can only modify the existing assignments. No new assignment are
allowed.

How to fix this error?

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

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 WRF_APC320 - You cannot create new assignments ?

  SAP Error Message:
  
  WRF_APC320 - You cannot create new assignments
  
  Cause:
  This error typically occurs in SAP when you attempt to create new assignments in the Advanced Planning and Optimization (APO) system, but the system settings or master data do not allow it. The main reasons include:
  
  Lock or Restriction on Assignment Creation: The system or configuration restricts creating new assignments for the particular object or planning area.
  Master Data or Configuration Issues: The relevant master data (e.g., product, location, resource) or planning version might be locked or not set up to allow new assignments.
  Authorization Issues: The user might not have the necessary authorization to create new assignments.
  Planning Version Status: The planning version might be set to a status that prohibits changes or new assignments.
  System or Integration Settings: In some cases, integration settings between SAP APO and ECC or other systems might restrict assignment creation.
  
  
  Solution:
  To resolve the WRF_APC320 error, consider the following steps:
  
  
  Check Planning Version Status:
  
  Verify that the planning version you are working with is open for changes.
  If the version is locked or released, you cannot create new assignments.
  Use transaction /SAPAPO/MC90 or relevant planning version maintenance transactions to check and change the status.
  
  
  
  Review Master Data and Configuration:
  
  Ensure that the master data objects involved (products, locations, resources) are correctly maintained and not locked.
  Check if the assignment creation is allowed in the configuration for the specific planning area or product/location combination.
  
  
  
  Check User Authorizations:
  
  Verify that the user has the required authorizations to create assignments.
  Use transaction SU53 after the error occurs to check missing authorizations.
  Adjust roles and profiles accordingly.
  
  
  
  Check System Settings and Integration:
  
  If the system is integrated with ECC or other SAP components, ensure that the integration settings do not restrict assignment creation.
  Check CIF (Core Interface) settings if relevant.
  
  
  
  Consult SAP Notes and Documentation:
  
  Search for SAP Notes related to WRF_APC320 for any known issues or patches.
  Review SAP APO documentation for assignment creation rules and restrictions.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /SAPAPO/MC90 - Planning Version Maintenance
  /SAPAPO/SDP94 - Product Master Data
  /SAPAPO/LOC3 - Location Master Data
  SU53 - Authorization Check
  
  
  
  SAP Modules Involved:
  
  SAP APO (Advanced Planning and Optimization)
  SAP SCM (Supply Chain Management)
  Integration with SAP ECC (if applicable)
  
  
  
  Typical Scenarios:
  
  Creating new product-location assignments in demand planning.
  Assigning resources or production capacities in production planning.
  Creating new planning objects in a locked or restricted planning version.
  
  
  
  
  If after these checks the problem persists, consider raising a support ticket with SAP, providing detailed information about the scenario, system configuration, and steps to reproduce the error.