M8311 - Purchase order &1 does not exist for invoice &2

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 311

• Message text: Purchase order &1 does not exist for invoice &2

What causes this issue?

Your selection included invoice &V2& which refers to purchase order &V1&
. This purchase order does not exist in the system. It may have been
reorganized.

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?

How you now proceed depends on whether you entered the invoice in
Logistics Invoice Verification or in the conventional Invoice
verification component.
Logistics Invoice Verification:
Display document &V2& in Logistics Invoice Verification and find the FI
document via <LS>Follow-on documents</>.
<DS:TRAN.MIR4>Display Invoice Document</>
Change the accounting document: Delete the entry <LB>R</> in the
<LS>Payment block</> field in the supplier line.
<DS:TRAN.FB02>Change document</>
Conventional invoice verification:
Change document &V2&: Delete the entry <LB>R</> in the <LS>Payment
block</> field in the supplier line.
<DS:TRAN.FB02>Change document</>
Save and call up the Release invoices transaction again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8311 - Purchase order &1 does not exist for invoice &2 ?

  The SAP error message M8311, which states "Purchase order &1 does not exist for invoice &2," typically occurs during the invoice verification process in the Materials Management (MM) module. This error indicates that the system cannot find a corresponding purchase order (PO) for the invoice being processed. Here are the potential causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Purchase Order Number: The purchase order number entered in the invoice does not match any existing purchase orders in the system.
  PO Not Created: The purchase order may not have been created or may have been deleted.
  PO Status: The purchase order might be in a status that does not allow for invoice verification (e.g., closed or blocked).
  Document Type Issues: The invoice document type may not be compatible with the purchase order type.
  Data Entry Errors: There may be typographical errors in the invoice entry, such as incorrect characters or formatting.
  Different Company Codes: The invoice and the purchase order may belong to different company codes, which can lead to this error.
  
  Solutions:
  
  Verify Purchase Order: Check if the purchase order number entered in the invoice is correct. You can do this by using transaction codes like ME23N (Display Purchase Order) to confirm the existence of the PO.
  Create Missing PO: If the purchase order does not exist, create it using transaction ME21N (Create Purchase Order) if applicable.
  Check PO Status: Ensure that the purchase order is in an appropriate status for invoice verification. If it is blocked or closed, you may need to take corrective actions.
  Correct Document Type: Ensure that the document type of the invoice matches the expected type for the purchase order.
  Re-enter Invoice: If there are data entry errors, re-enter the invoice with the correct details.
  Company Code Consistency: Ensure that both the invoice and the purchase order are associated with the same company code.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME21N (Create PO), ME23N (Display PO), and MIRO (Invoice Verification).
  User Authorizations: Ensure that you have the necessary authorizations to view and create purchase orders and invoices.
  SAP Notes: Check for any relevant SAP Notes or updates that may address specific issues related to this error message.
  Consult Documentation: Review SAP documentation or help files for additional context on invoice verification and purchase order processing.
  
  If the issue persists after checking these aspects, it may be beneficial to consult with your SAP support team or a functional consultant for further assistance.