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

M8311 - Overview

• 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