How To Fix CMM_MM018 - Goods receipt quantity in purchase order history &1 &2 is negative

SAP Error Message - Details

• Message type: E = Error

• Message class: CMM_MM -

• Message number: 018

• Message text: Goods receipt quantity in purchase order history &1 &2 is negative

What causes this issue?

The report has selected purchase order &V1&, item &V2&. The goods
receipt quantity in the purchase order history for the valuation key
date &V3& is negative. This is not allowed.

How can this happen?

Example for a negative GR quantity in purchase order history for the
valuation key date 20130114:
<ZH>Goods Receipt,,Quantity,,Posting Date</>
12345,,4 units,,20130114
12346,,6 units,,20130115
12347,,6- units,,20130112
In this example, a goods receipt quantity of -2 units results for the
valuation key date 2013.01.14, because the negative 6 units (posted at
2013.01.12) are compensated with only 4 units (posted at 2013.01.14).
The goods receipt 12346 is posted afterwards and therefore the system
ignores it for the valuation key date 2013.01.14.

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?

Check the purchase order history for purchase order &V1&, item &V2&.

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 CMM_MM018 - Goods receipt quantity in purchase order history &1 &2 is negative ?

  The SAP error message CMM_MM018 indicates that there is a negative goods receipt quantity in the purchase order history for a specific purchase order item. This typically occurs when there is an inconsistency in the inventory management or when the system attempts to process a goods receipt that would result in a negative stock level.
  Cause:
  
  Negative Stock: The most common cause is that the system is trying to post a goods receipt that would result in a negative stock level for the material.
  Incorrect Quantity: The quantity being received may be less than the quantity already posted as received, leading to a negative balance.
  Data Entry Errors: Manual entry errors during the goods receipt process can lead to discrepancies in the quantities.
  Cancellation of Goods Movements: If a previous goods movement (like a goods issue or a return) was canceled, it might lead to inconsistencies in the stock levels.
  Purchase Order Changes: Changes made to the purchase order after goods have been received can also lead to this error.
  
  Solution:
  
  Check Stock Levels: Verify the current stock levels for the material in question. Use transaction codes like MMBE to check the stock situation.
  Review Purchase Order History: Use transaction code ME23N to review the purchase order history and see the quantities that have been received and any discrepancies.
  Adjust Quantities: If the goods receipt quantity is indeed incorrect, adjust the quantity being received to ensure it does not lead to a negative stock level.
  Correct Previous Entries: If there were errors in previous goods movements, consider reversing or correcting those entries to restore consistency.
  Consult with Inventory Management: If the issue persists, consult with your inventory management team to investigate any underlying issues with stock management or system settings.
  System Configuration: Ensure that the system is configured correctly to prevent negative stock situations. This may involve checking settings in the material master or inventory management configuration.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A (Goods Issue), MB1B (Transfer Posting), MB1C (Other Goods Movements), and MIGO (Goods Movement).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation on inventory management and goods receipt processes for best practices and troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.