How To Fix WTADDI255 - Please enter a reference purchase order number for additionals

SAP Error Message - Details

• Message type: E = Error

• Message class: WTADDI - Additionals: Messages

• Message number: 255

• Message text: Please enter a reference purchase order number for additionals

What causes this issue?

To request an additionals IDoc you must specify the purchase order
number of the relevant purchasing document.
A purchase order was generated for the additional. The input parameters
must include the purchasing document number (<zh>AddiBuyHeadID</>) and
the item (<zh>AddiBuyItemNo</>).

System Response

No additionals IDoc is generated.

How to fix this error?

Check the parameters.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WTADDI255 - Please enter a reference purchase order number for additionals ?

  SAP Error Message:
  
  WTADDI255 – Please enter a reference purchase order number for additionals
  
  Cause:
  This error occurs in SAP Warehouse Management (WM) or Inventory Management (IM) when you are trying to post additional costs (such as freight, insurance, or other additional expenses) to a goods receipt or invoice receipt without specifying a reference purchase order (PO) number. The system requires a reference PO to correctly assign these additional costs to the relevant procurement document.
  In other words, when entering additional costs related to a goods receipt or invoice, SAP expects you to link these costs to a specific PO. If this reference is missing, the system throws the WTADDI255 error.
  
  When does it typically occur?
  
  During the posting of additional costs in transaction codes related to invoice verification or goods receipt.
  When using the Additional Costs functionality in Logistics Invoice Verification (LIV).
  When entering additional costs manually or via automatic processes without a PO reference.
  
  
  Solution:
  
  
  Enter the Reference Purchase Order Number:
  
  When posting additional costs, ensure that you provide the correct PO number in the relevant field.
  This links the additional costs to the correct procurement document and allows proper cost allocation.
  
  
  
  Check the Configuration:
  
  Verify if the system requires a PO reference for additional costs in your business process.
  In some cases, configuration settings in Logistics Invoice Verification or Materials Management might enforce this requirement.
  
  
  
  Review the Process:
  
  If you are posting additional costs without a PO intentionally (e.g., for direct expenses), check if your process allows this or if a workaround is needed.
  Sometimes, additional costs can be posted without a PO if configured accordingly, but this depends on your system setup.
  
  
  
  Consult Documentation or SAP Notes:
  
  Check SAP Notes or your internal documentation for any specific instructions related to additional costs and PO references in your SAP environment.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MIRO (Enter Incoming Invoice)
  MIGO (Goods Movement)
  MRBR (Release Blocked Invoices)
  MRRL (Evaluate Invoice Blocks)
  
  
  
  SAP Modules Involved:
  
  MM (Materials Management)
  WM (Warehouse Management)
  FI (Financial Accounting) – for cost postings
  
  
  
  Additional Costs in SAP:
  
  Additional costs are often posted to adjust the value of goods received or to allocate freight and other expenses.
  Proper referencing ensures accurate inventory valuation and accounting.
  
  
  
  SAP Help and Notes:
  
  Search for SAP Notes related to WTADDI255 for any patches or detailed explanations.
  SAP Help Portal sections on Logistics Invoice Verification and Additional Costs.
  
  
  
  
  Summary:
  Error WTADDI255 means you must enter a reference purchase order number when posting additional costs. To resolve it, provide the PO number in the additional costs entry screen. Ensure your process and configuration align with this requirement to avoid the error.
  
  If you need help with a specific transaction or scenario, please provide more details!