Unable to attach Standard Work Operation in Standard repair times

Summary: Hi when creating Standard Repair Times, I am trying add the Standard Operation codes but it is not accepting the value,, even though they are in the same organization. Is their any other pre-configuration required?

Content (please ensure you mask any confidential information):

Standard Repair Times - Supplier Warranty - Maintenance management - SCM

Version (include the version you are using, if applicable):

Oracle Fusion 26B

Code Snippet (add any code snippets that support your topic, if applicable):