How To Fix WP426 - Transaction code & for sales as per receipts cannot be converted

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 426

• Message text: Transaction code & for sales as per receipts cannot be converted

What causes this issue?

The conversion rule for transaction type &V1& for inbound processing as
per sales receipts has not been defined.

System Response

The data could not be processed.

How to fix this error?

<DS:SIMG.W_DF_VK_0138.SIMG_OPOS>Maintain the required conversion
rule</> or <DS:SIMG.W_DF_VK_0129.SIMG_OPOS>switch off conversion</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WP426 - Transaction code & for sales as per receipts cannot be converted ?

  The SAP error message WP426 with the text:
  Transaction code & for sales as per receipts cannot be converted
  typically occurs in the context of sales document processing, especially when dealing with sales as per receipts (also known as sales based on incoming payments or sales as per cash receipts).
  
  Cause of the Error WP426
  
  The error indicates that the transaction code associated with the sales as per receipts process cannot be converted or is not valid for the current operation.
  This usually happens when the system tries to convert or process a sales document or transaction that is linked to a transaction code which is either:
  
  Missing or not maintained in the system.
  Incorrectly assigned or configured.
  Not supported for the sales as per receipts process.
  
  
  It can also occur if the customizing settings for the transaction codes related to sales as per receipts are incomplete or inconsistent.
  
  
  Where does this error typically appear?
  
  During the conversion of sales documents (e.g., delivery or billing documents) that are created based on receipts.
  When processing sales as per receipts transactions in SD (Sales and Distribution) or FI-CA (Contract Accounts Receivable and Payable) modules.
  In scenarios involving automatic posting or clearing of payments against sales documents.
  
  
  Solution / How to Fix WP426
  
  
  Check Transaction Code Configuration:
  
  Go to the customizing path for transaction codes related to sales as per receipts.
  For example, in SD or FI-CA, verify the transaction codes assigned for sales as per receipts.
  Ensure that the transaction code mentioned in the error message (&) is correctly maintained and valid.
  
  
  
  Verify Sales Document Type and Transaction Code Mapping:
  
  Check the mapping between sales document types and transaction codes.
  Make sure that the transaction code used for sales as per receipts is allowed for the document type you are processing.
  
  
  
  Review Customizing for Sales as per Receipts:
  
  In SPRO, navigate to:
  Sales and Distribution -> Basic Functions -> Sales as per Receipts -> Define Transaction Codes
  
  Confirm that all necessary transaction codes are defined and assigned properly.
  
  
  
  Check User Exits or Enhancements:
  
  If there are any user exits or BAdIs implemented for sales as per receipts, verify that they do not interfere with transaction code assignment or conversion.
  
  
  
  Consult SAP Notes:
  
  Search for SAP Notes related to WP426 or sales as per receipts errors.
  Sometimes, SAP provides patches or corrections for known issues.
  
  
  
  Testing:
  
  After corrections, test the sales as per receipts process again to confirm the error is resolved.
  
  
  
  
  Additional Information
  
  Sales as per receipts is a process where sales documents are created based on actual incoming payments rather than on orders or deliveries.
  Proper configuration of transaction codes is critical because SAP uses these codes to determine how to process and post the sales transactions.
  The placeholder & in the error message is replaced by the actual transaction code causing the issue.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WP426 - Transaction code & for sales as per receipts cannot be converted
  
  
  Cause
  Invalid, missing, or incorrectly configured transaction code for sales as per receipts
  
  
  Solution
  Check and correct transaction code configuration in customizing (SPRO)
  
  
  
  Verify mapping between sales document types and transaction codes
  
  
  
  Review user exits/enhancements if any
  
  
  
  Apply relevant SAP Notes if available
  
  
  Related Areas
  Sales and Distribution (SD), FI-CA, Sales as per Receipts configuration
  
  
  
  
  If you provide the exact transaction code shown in the error message or the context (module, transaction, process), I can help you with more specific steps.