How To Fix CO066 - Operation & is reference operation of sequence & (deletion not possible)

CO066 - Overview

• Message type: E = Error

• Message class: CO - PPC order processing messages

• Message number: 066

• Message text: Operation & is reference operation of sequence & (deletion not possible)

What causes this issue?

You want to delete an operation. The operation is, however, defined as
a branch operation or return operation for sequence &V2&.

How to fix this error?

Enter a different operation as the branch or return operation of
sequence &V2&. Operation &V1& is then no longer a reference operation
and can be deleted.

Error message extract from SAP system. Copyright SAP SE.

CO066 - Details

• The SAP error message CO066 indicates that you are trying to delete an operation in a routing or production order that is a reference operation for another operation or sequence. This means that the operation you are attempting to delete is being used as a reference for other operations, and therefore, SAP does not allow its deletion to maintain data integrity.
  
  Cause:
  
  Reference Operation: The operation you are trying to delete is being referenced by another operation in the same routing or production order.
  Dependencies: There may be dependencies or links to other operations that prevent deletion.
  Routing Structure: The routing structure may be designed in such a way that certain operations are critical for the overall process.
  
  
  Solution:
  
  Check References: Identify which operations are referencing the operation you want to delete. You can do this by reviewing the routing or production order in the SAP system.
  Remove References: If possible, remove the references to the operation