If you have a Preconditions message arise that stops you from starting an Operation, take a look at the following examples with solutions to try and rectify the issue:
Preconditions for this operation are not met. Check results for Operations: Matching
Preconditions for this operation are not met. Check results for operations: Assembly 2
Preconditions for this operation are not met. Check results for Operations: Matching
When the Pre-Conditions for this Operation are not met, and suggests to check results for Operations Matching ensure your Preconditions have been configured in the Manufacturing Routings.
Check the manufacturing routings precondition settings
Ensure you have configured and saved the preconditions
Preconditions for this operation are not met. Check results for operations: Assembly 2
If the message suggests to check results for a particular Operation ensure your Barcode settings have been configured correctly