How To Fix WTADDI_APPL026 - Subsequent action &2 found for additional &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WTADDI_APPL - Messages for Application Log LO-ADM/APPL

• Message number: 026

• Message text: Subsequent action &2 found for additional &1

What causes this issue?

An additionals document is created for additional &V1& with
<DS:DE.ADDI_OPER>follow-up action</> &V2&.
&hints&
You can also consult the additionals document in the additionals
monitor. In the additionals monitor you can also check the status of
your follow-up action.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WTADDI_APPL026 - Subsequent action &2 found for additional &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WTADDI_APPL026: Subsequent action &2 found for additional &1
  
  Meaning / Cause:
  This error occurs in the context of SAP Warehouse Management (WM) or Extended Warehouse Management (EWM), specifically related to Handling Unit (HU) management or Warehouse Task (WT) processing.
  
  The message indicates that a subsequent action (e.g., a follow-up process or step) has already been assigned or found for a particular additional item (additional &1).
  In other words, the system has detected that for the given additional item (could be an additional HU, additional WT, or additional document), a subsequent action (like confirmation, posting, or movement) is already planned or exists.
  This situation typically arises when trying to create or assign a new subsequent action for an item that already has one, which is not allowed or causes a conflict.
  
  
  Typical Scenarios:
  
  Attempting to create a new warehouse task or handling unit for an item that already has a subsequent action assigned.
  Trying to process or confirm a warehouse task when the system expects the previous subsequent action to be completed first.
  Duplicate or conflicting entries in the warehouse task or handling unit processing.
  
  
  Solution / How to Resolve:
  
  
  Check Existing Subsequent Actions:
  
  Use transaction codes like LT22 (Display Transfer Order), LT23, or relevant WM/EWM transactions to check if there are existing warehouse tasks or handling units with subsequent actions assigned.
  Identify the existing subsequent action for the additional item &1.
  
  
  
  Complete or Cancel Existing Subsequent Actions:
  
  If the existing subsequent action is incomplete or stuck, try to complete or confirm it.
  If it is erroneous or no longer needed, consider canceling or deleting the existing subsequent action.
  
  
  
  Avoid Duplicate Processing:
  
  Ensure that the process or program logic does not attempt to create multiple subsequent actions for the same additional item.
  Review custom code or user actions that might be causing duplicate creation.
  
  
  
  Check Customizing and Configuration:
  
  Verify the warehouse process type and movement type settings to ensure they are correctly configured to handle subsequent actions.
  Check if any user-exits or BAdIs are influencing the creation of subsequent actions.
  
  
  
  Debugging / Analysis:
  
  If the cause is unclear, debug the relevant function modules or BAPIs involved in warehouse task creation or handling unit processing.
  Look for where the system checks for existing subsequent actions and why it raises this error.
  
  
  
  
  Related Information:
  
  Message Class: WTADDI_APPL (Warehouse Task Additional)
  Transaction Codes: LT22, LT23, /SCWM/PRDO (EWM warehouse task processing)
  SAP Notes: Search for notes related to WTADDI_APPL026 or warehouse task subsequent actions.
  SAP Modules: WM (Warehouse Management), EWM (Extended Warehouse Management)
  Common Tables: LTAK (Transfer Order Header), LTAP (Transfer Order Items), /SCWM/ORDIM_C (EWM warehouse order items)
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error Cause
  A subsequent action already exists for the additional item, causing a conflict.
  
  
  Solution
  Check and complete/cancel existing subsequent actions; avoid duplicate creation.
  
  
  Where to Check
  Warehouse tasks, handling units, transfer orders, and related processing transactions.
  
  
  Related Transactions
  LT22, LT23, /SCWM/PRDO, and relevant WM/EWM transactions.
  
  
  
  
  If you provide more context (e.g., transaction used, process step, or custom developments), I can help with more specific guidance.