Custom Fields: "Display Order" and "Field Name" field(s) cannot be kept empty by Tips and Tricks HQ Support Portal › Forums › WP eMember › Custom Fields: "Display Order" and "Field Name" field(s) cannot be kept empty Tagged: custom fields, Looks like you have entered a product ID () that doesn& This topic has 11 replies, 6 voices, and was last updated 11 years, 8 months ago by lanbau. You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In