How To Fix CPOC123 - Predecessor phase &1 is not permitted or does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CPOC - PP-PI-PMA: Process Operator Cockpit Messages

• Message number: 123

• Message text: Predecessor phase &1 is not permitted or does not exist

What causes this issue?

You have defined a <DS:GLOS.3526C52FAFAB52B9E10000009B38F974>sequence
definition</> in a process instruction. Characteristic PPPI_PREDECESSOR
must be assigned the number of the phase that must be completed before
the phase containing the sequence definition.
However, value assignment of characteristic PPPI_PREDECESSOR is not
correct:
The phase you have specified does not exist.
The phase you have specified is the same as the phase containing the
sequence definition.
The phase you have specified belongs to a different control recipe.

System Response

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

How to fix this error?

Correct the value assignment of characteristic PPPI_PREDECESSOR in
cases a) and b).
In case c) correct the control recipe destination for the phase.

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 CPOC123 - Predecessor phase &1 is not permitted or does not exist ?

  The SAP error message CPOC123, which states "Predecessor phase &1 is not permitted or does not exist," typically occurs in the context of SAP's Project System (PS) or Production Planning (PP) modules when dealing with process chains or project phases. This error indicates that the system is unable to find a valid predecessor phase for the operation or task you are trying to execute.
  Causes:
  
  Non-existent Predecessor Phase: The specified predecessor phase (indicated by &1) does not exist in the system. This could be due to a typo or because the phase was deleted or never created.
  Incorrect Configuration: The configuration of the process chain or project may not allow for the specified predecessor phase. This could be due to restrictions in the phase sequence.
  Authorization Issues: The user may not have the necessary authorizations to access the predecessor phase.
  Data Inconsistencies: There may be inconsistencies in the data or configuration settings that prevent the predecessor phase from being recognized.
  
  Solutions:
  
  Verify Phase Existence: Check if the predecessor phase exists in the system. You can do this by navigating to the relevant transaction (e.g., CPH1 for process chains) and confirming that the phase is listed.
  Check Configuration: Review the configuration settings for the process chain or project to ensure that the predecessor phase is allowed. This may involve checking the sequence of phases and their dependencies.
  Correct Typographical Errors: Ensure that there are no typographical errors in the phase name or ID when referencing the predecessor phase.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the predecessor phase. This may involve checking user roles and permissions.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on configuring process chains or project phases.
  Debugging: If the issue persists, consider using debugging tools to trace the execution and identify where the error is occurring.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CPH1 (for process chains) or CJ20N (for project management) to navigate and troubleshoot effectively.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.