How To Fix CP404 - Enter another operation number

SAP Error Message - Details

• Message type: E = Error

• Message class: CP - Task list messages: Core data

• Message number: 404

• Message text: Enter another operation number

What causes this issue?

One of the following errors has occurred:

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

The operation number you entered is already used in this sequence.
The operation number is not between the branch operation and the return
operation.

How to fix this error?

Enter a different operation number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CP404 - Enter another operation number ?

  The SAP error message CP404 ("Enter another operation number") typically occurs in the context of production planning and control, particularly when working with routing or production orders. This error indicates that the operation number you are trying to enter is either invalid or does not exist in the context of the current operation list or routing.
  Causes:
  
  Invalid Operation Number: The operation number you are trying to enter does not exist in the routing or production order.
  Routing Not Assigned: The routing for the material or production order may not be correctly assigned or may be missing.
  Incorrect Order Type: The operation number may not be valid for the specific type of order you are working with.
  Data Entry Error: There may be a typographical error in the operation number you are entering.
  
  Solutions:
  
  Verify Operation Number: Check the operation number you are trying to enter. Ensure that it exists in the routing or production order you