How To Fix WRF_PPW819 - Change of mat. &1 not possible; only postprocessed items can be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_PPW - Price Planning Workbench

• Message number: 819

• Message text: Change of mat. &1 not possible; only postprocessed items can be changed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_PPW819 - Change of mat. &1 not possible; only postprocessed items can be changed ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_PPW819 Change of mat. &1 not possible; only postprocessed items can be changed
  
  Meaning / Cause:
  This error occurs when you try to change a material in a document or process where the system only allows changes to items that have already been post-processed. In other words, the material you are attempting to change is not in a status that permits modification because it has not yet been post-processed or finalized.
  
  Material &1 refers to the material number you are trying to change.
  The system restricts changes to only those items that have been post-processed (e.g., after certain workflow steps, postings, or status changes).
  Attempting to change a material before it reaches this stage triggers this error.
  
  This is common in processes like production orders, goods movements, or workflow-driven documents where certain steps must be completed before changes are allowed.
  
  Typical Scenarios:
  
  Changing materials in a production order or process order before the order has been released or confirmed.
  Modifying items in a workflow or document before the post-processing step is completed.
  Attempting to edit materials in a goods movement or delivery document that is still in an initial or intermediate status.
  
  
  Solution / How to Resolve:
  
  
  Check the Status of the Item:
  
  Verify if the item/material has been post-processed or finalized.
  For example, in production orders, check if the order is released, confirmed, or technically completed.
  
  
  
  Complete Required Post-Processing Steps:
  
  Perform the necessary post-processing activities (e.g., confirm the order, complete workflow steps).
  Only after these steps can the material be changed.
  
  
  
  Use Correct Transaction or Process:
  
  Ensure you are using the appropriate transaction or process step that allows changes.
  Some changes might only be possible in specific transactions or after certain statuses.
  
  
  
  Consult Workflow or Process Documentation:
  
  Review the business process or workflow to understand when changes are permitted.
  Sometimes, changes are restricted by design to maintain data integrity.
  
  
  
  If Change is Urgent and Allowed by Business:
  
  Consider reversing or canceling the post-processing step (if possible) to revert the item to a modifiable status.
  Then make the change and reprocess.
  
  
  
  Check Authorizations:
  
  Ensure you have the necessary authorizations to make changes at the current stage.
  
  
  
  
  Related Information:
  
  This message is often linked to custom or standard workflow processes controlling document/item changes.
  It may be related to user exits, BAdIs, or custom validations that enforce change restrictions.
  Check transaction logs, workflow logs, or change documents to understand the current status.
  SAP Notes or OSS messages related to WRF_PPW819 may provide additional insights if this is a known issue in your SAP version.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WRF_PPW819 Change of mat. &1 not possible; only postprocessed items can be changed
  
  
  Cause
  Attempt to change a material before it has been post-processed or finalized
  
  
  Solution
  Complete post-processing steps first; check status; use correct transaction; verify authorizations
  
  
  Related Info
  Workflow/process status controls; custom validations; check SAP Notes if needed
  
  
  
  
  If you provide the exact transaction or process where this error occurs, I can help with more specific guidance.