How To Fix CY342 - Network &/&: The start date has a fixed branch info indicator

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 342

• Message text: Network &/&: The start date has a fixed branch info indicator

What causes this issue?

The operation has the constraint that it must start on a particular
date. However the date when you want to dispatch the operation does not
correspond to the constraint date. Therefore it is not possible to
dispatch the operation.

How to fix this error?

You should enter the constraint date from the network as the date when
the operation is to be dispatched.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY342 - Network &/&: The start date has a fixed branch info indicator ?

  The SAP error message CY342 typically relates to issues in the context of capacity planning or production planning, particularly when dealing with networks in the Project System (PS) or Production Planning (PP) modules. The error indicates that there is a problem with the start date of a network activity that has a fixed branch information indicator.
  Cause:
  The error message CY342 occurs when:
  
  Fixed Branch Indicator: The network activity has a fixed branch indicator set, which means that the start date of the activity cannot be changed. This is often used in scenarios where the sequence of operations is critical.
  Date Constraints: The start date you are trying to set or modify conflicts with the fixed branch settings, leading to inconsistencies in the scheduling of the network activities.
  Dependencies: There may be dependencies or relationships with other activities that are not being respected due to the fixed nature of the branch.
  
  Solution:
  To resolve the CY342 error, you can take the following steps:
  
  
  Check Fixed Branch Settings: Review the network activity and check if the fixed branch indicator is indeed set. If it is not necessary for your planning, consider changing this setting.
  
  
  Adjust Dates: If the fixed branch indicator is required, ensure that the start date you are trying to set is compatible with the existing schedule and dependencies of the network activities. You may need to adjust other related activities to accommodate the fixed start date.
  
  
  Review Dependencies: Look at the relationships between the activities in the network. Ensure that the dependencies are correctly defined and that changing the start date of one activity does not violate the constraints of others.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling fixed branch indicators and network scheduling.
  
  
  Seek Help from SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CN21 (Create Network) or CN22 (Change Network) to review and modify network activities.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Training and Documentation: Ensure that users involved in project planning and scheduling are trained on the implications of fixed branch indicators and how they affect network scheduling.
  
  By following these steps, you should be able to identify the cause of the CY342 error and implement a suitable solution.