How To Fix UCS0035 - Preceding task &1 not yet blocked by task &2 for &3

UCS0035 - Overview

• Message type: E = Error

• Message class: UCS0 - Messages for Status Management

• Message number: 035

• Message text: Preceding task &1 not yet blocked by task &2 for &3

What causes this issue?

Task &V1&, which precedes task &V2&, has not yet been blocked for &V3&.
Task &V2& cannot be blocked in this situation.

System Response

Informational message

How to fix this error?

To block task &V2&, you first need to block all of its preceding tasks,
including task &V1& for &V3& in particular.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCS0035 - Preceding task &1 not yet blocked by task &2 for &3 ?

  The SAP error message UCS0035 indicates that a task is trying to access a resource that is not yet blocked by a preceding task. This typically occurs in the context of background processing or when multiple tasks are trying to access the same resource in a specific sequence.
  
  Cause:
  The error arises when:
  
  A task (let's call it Task B) is attempting to execute before a preceding task (Task A) has completed its operation and properly blocked the resource it needs.
  This can happen in scenarios involving parallel processing, where tasks are dependent on each other, but the dependencies are not correctly managed.
  
  
  Solution:
  To resolve the UCS0035 error, consider the following steps:
  
  
  Check Task Dependencies: Ensure that the tasks are correctly sequenced. Task A must complete and block the resource before Task B can proceed. Review the logic in your background job or process chain to ensure that dependencies are correctly defined.
  
  
  Review Job Scheduling: If you