Well this was a new one.
{"type":"error.SuiteScriptError","name":"MUTUALLY_EXCLUSIVE_ARGUMENTS","message":"Can't use mutually exclusive arguments....
Came from this line of code:
recordObject.setSublistValue({ sublistId: 'item', fieldId: 'custcol_myfield', value: results[guid] });Can you spot the issue?
How about that I did not supply the line parameter?
Date: 2025.12.18 NS Version: 2025.2