Failed to save record because The Landed Cost per Line field can only be changed on new transactions.

AI generated answer (using internal Slack threads):

Based on the conversations, it appears that the 'Landed Cost per Line' field in NetSuite can only be edited or checked when creating a new Item Receipt (IR). Once the IR is saved, this field becomes disabled and cannot be edited. This is a built-in behavior of NetSuite and cannot be changed through the user interface or global accounting preferences. However, it was suggested that a User Event Script could potentially be used to modify this field on an existing IR. User Event Scripts in NetSuite are triggered by create, load, edit, copy, delete, submit, or cancel events on records. They can be used to perform custom business processing or to enforce custom business rules. Please note that scripting should be done by someone who is familiar with SuiteScript and understands the business requirements and implications. Always test scripts in a sandbox environment before deploying to production. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******