Create Pick List from custom field in Sales Order form

Hello Right now when you click on CreatePick List, it will choose the items from the “Items” table. Makes sense, but we have a requirement to get the pick list from a custom table that’s added in the form. Is there a way to create a pick list from this source of data in the form?

You can remove the default option and add your own using Custom Scripting:

https://docs.erpnext.com/docs/user/manual/en/customize-erpnext/custom-scripts/rename-buttons-in-form-view

You will have to point the button to a valid method in the system, or create your own which will do the job. The documentation covers some basic aspects about this.