How To Fix CPCL110 - Alternative or parallel sequences are not allowed for this task list type

SAP Error Message - Details

• Message type: E = Error

• Message class: CPCL - Service Layer for Plans, Sequences, Operations, and Subober.

• Message number: 110

• Message text: Alternative or parallel sequences are not allowed for this task list type

What causes this issue?

You want to create an alternative or parallel sequence in a task list,
whose task list type disallows it.

System Response

The alternative or parallel sequence was not created.

How to fix this error?

You can no longer change the task list type of a task list that has
already been created. Create a new task list if necessary, whose task
list type allows alternative or parallel sequences. After that create
the alternative or parallel sequence.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CPCL110 - Alternative or parallel sequences are not allowed for this task list type ?

  The SAP error message CPCL110, which states "Alternative or parallel sequences are not allowed for this task list type," typically occurs in the context of production planning and control, particularly when dealing with task lists in SAP's Controlling (CO) or Production Planning (PP) modules.
  Cause:
  This error arises when you attempt to create or modify a task list that includes alternative or parallel sequences, which are not permitted for the specific type of task list you are working with. The task list type may have restrictions that do not allow for multiple alternatives or parallel operations, which can happen in various scenarios, such as:
  
  Task List Type Restrictions: Certain task list types (like standard task lists) may not support alternative or parallel sequences.
  Configuration Settings: The configuration settings in the system may restrict the use of alternatives or parallel sequences for the specific task list type.
  Incorrect Data Entry: There may be an error in how the task list was defined, leading to the inclusion of alternatives or parallel sequences.
  
  Solution:
  To resolve the CPCL110 error, you can take the following steps:
  
  
  Review Task List Type: Check the type of task list you are using and confirm whether it supports alternative or parallel sequences. You may need to switch to a different task list type that allows these features.
  
  
  Modify Task List: If the task list type does not support alternatives or parallel sequences, you will need to modify the task list to remove any such configurations. Ensure that the sequences are linear and conform to the allowed structure for that task list type.
  
  
  Check Configuration: If you believe that the task list type should allow alternatives or parallel sequences, review the configuration settings in the SAP system. This may involve checking the settings in the Customizing (SPRO) transaction to ensure that the task list type is set up correctly.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on the task list types and their allowed configurations.
  
  
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  Related Information:
  
  Task List Types: Familiarize yourself with the different task list types available in SAP and their specific characteristics.
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional insights.
  Training and Documentation: Consider training sessions or documentation on SAP PP/CO modules to better understand task list management and configurations.
  
  By following these steps, you should be able to identify the cause of the CPCL110 error and implement a suitable solution.