How To Fix WRF_AT158 - Synchronization with allocation table &1, item &2 is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_AT - Messages for Allocation Table RTFASH

• Message number: 158

• Message text: Synchronization with allocation table &1, item &2 is not possible

What causes this issue?

The subitem for item &V4& in purchase order &V3& does not have a
reference to an allocation table.

System Response

It is not possible to synchronize the order change with the allocation
table &V1&, item &V2&.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_AT158 - Synchronization with allocation table &1, item &2 is not possible ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_AT158: Synchronization with allocation table &1, item &2 is not possible
  
  Cause:
  This error occurs during the synchronization process between the Work Breakdown Structure (WBS) elements or network activities and the allocation table in SAP PS (Project System) or related modules. The system tries to update or synchronize data with a specific allocation table and item, but it fails because:
  
  The allocation table entry (&1) or the specific item (&2) is locked or inconsistent.
  The allocation table or item is missing or has been deleted.
  There is a mismatch or inconsistency in the data between the project system and the allocation table.
  The user does not have the necessary authorizations to perform the synchronization.
  The allocation table is currently being updated by another process, causing a lock conflict.
  Custom enhancements or user exits affecting synchronization are causing errors.
  
  
  Solution:
  To resolve this error, you can try the following steps:
  
  
  Check Locks:
  
  Use transaction SM12 to check if the allocation table or related entries are locked.
  If locks exist and are stale, consider releasing them carefully after ensuring no active process is using them.
  
  
  
  Verify Allocation Table and Item:
  
  Confirm that the allocation table (&1) and item (&2) exist and are valid.
  Check for any inconsistencies or missing entries in the allocation table.
  
  
  
  Check Authorizations:
  
  Ensure the user performing the synchronization has the required authorizations for the allocation table and project system objects.
  
  
  
  Data Consistency Check:
  
  Run consistency checks for the project system data.
  Use transaction CN41 or CN43 to review WBS elements and network activities.
  Use transaction CJ20N to check the project structure.
  
  
  
  Re-run Synchronization:
  
  Try to re-execute the synchronization process after resolving locks or inconsistencies.
  If synchronization is done via a program or report, re-run it.
  
  
  
  Check for Custom Code:
  
  If there are user exits or BAdIs implemented for synchronization, review the custom code for errors or inconsistencies.
  
  
  
  SAP Notes and Support:
  
  Search for relevant SAP Notes using the message number or keywords.
  If the problem persists, consider raising a support ticket with SAP, providing detailed logs and system information.
  
  
  
  
  Related Information:
  
  Module: SAP Project System (PS)
  Transactions:  
  
  SM12 - Lock Entries  
  CJ20N - Project Builder  
  CN41 / CN43 - Project Structure Overview  
  
  
  Common SAP Notes:  
  
  Check SAP Service Marketplace for notes related to WRF_AT158 or synchronization issues in PS.
  
  
  Possible Impact:  
  
  Failure to synchronize allocation data can lead to incorrect cost allocations, budgeting errors, or project reporting inconsistencies.
  
  
  
  
  If you provide the exact allocation table name (&1) and item (&2), I can help you with more specific troubleshooting steps.