custom item field, a list field. I want to limit the fields that shall be available to choose from. how?

AI generated answer (using internal Slack threads):

To limit the values available to choose from in a custom item field that uses a list, you can use filtering. This can be done by adding additional fields to the location record so you can filter results based on specific criteria. Here are the steps to do this: 1. Go to the custom field definition. 2. In the 'Source List' section, select the list you want to use. 3. In the 'Filter Using' section, select the field you want to use to filter the list. 4. In the 'Filter Compare Type' section, select the comparison type. 5. In the 'Filter Value' section, enter the value you want to use to filter the list. Another way to achieve this is by converting your list to a custom record and then adding an attribute for enhanced filtering. This will give you more flexibility in terms of what you can filter on. If you want to restrict the list of custom record values in the custom field, you can do this by using a script. However, this is not recommended by NetSuite as it involves modifying the DOM to remove the unwanted elements from the fields. Alternatively, if you customize the sales order form or the purchase order form and go to Sublist fields, you'll see an item filter field. You can read more about this in SuiteAnswers. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******