How To Fix RU127 - Conf. no. & does not belong to order & (check entry)

RU127 - Overview

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 127

• Message text: Conf. no. & does not belong to order & (check entry)

What causes this issue?

When you first enter a confirmation for an order, the system assigns a
confirmation number to the order header.
The confirmation number and the order number that you entered do not
belong together.

How to fix this error?

If you want to enter a confirmation at order header level, enter only
the order number (without the confirmation number).
If you want to enter a confirmation for a (sub-)operation, you have two
options:
Enter only the confirmation number
Enter the order number, sequence, operation, and, if required, the
sub-operation.

Error message extract from SAP system. Copyright SAP SE.

RU127 - Details

• The SAP error message RU127 ("Conf. no. & does not belong to order & (check entry)") typically occurs in the context of production order confirmations. This error indicates that the confirmation number you are trying to use does not match the production order you are working with. Here are the potential causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Confirmation Number: The confirmation number entered does not correspond to the specified production order.
  Order Status: The production order may be in a status that does not allow confirmations (e.g., closed or technically completed).
  Data Entry Error: There may have been a typographical error when entering the confirmation number or order number.
  System Configuration: There may be issues with the configuration of the production order or confirmation process in SAP.
  
  Solutions:
  
  Verify Confirmation Number: Double-check the confirmation number you are entering to ensure it is correct and corresponds to the production order.
  Check Order Status: Ensure that