how to make field accept specific values only

AI generated answer (using internal Slack threads):

To make a field accept specific values only, you can use the Sourcing and Filtering options in the custom field setup. This allows you to limit the available values from the list based on specific criteria. Here's a step-by-step guide: 1. Create a custom field and select the type of list you want to use. 2. In the Sourcing/Filtering Subtab, add a filter based on the criteria you want to use to limit the values. For example, if you have a checkbox on the record that you want to include in the list, you can add a filter to only include records where the checkbox is checked. This method allows you to limit the values in the list without having to create a new list, which can make it easier to manage your data. Please note that this method requires you to add additional fields or attributes to the records you want to filter. If you don't want to add these additional fields, another option is to convert your list to a custom record and add attributes for enhanced filtering. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******