How to put "List View Actions in Lightning Experience" into metadata?

Question

I've defined "List View Actions in Lightning Experience" using Setup -> Object Manager -> (my custom object) -> Search Layouts -> List View -> List View Actions in Lightning Experience, but I can't find a way to put this into metadata files. There is a searchLayouts section in .object file, but List View Actions are not there when I retrieve metadata from the org. Is it even possible to do this?

Answer 1

release notes of 44.0 API saying that lightning list view actions are mentioned in massQuickActions tag in searchLayout section of object. Example from documentation

<?xml version="1.0" encoding="UTF-8"?>
<CustomObject xmlns="http://soap.sforce.com/2006/04/metadata">
    . . .
    <searchLayouts>
        <listViewButtons>New</listViewButtons>
        <listViewButtons>Accept</listViewButtons>
        <listViewButtons>ChangeOwner</listViewButtons>
        <lookupDialogsAdditionalFields>firstQuote__c</lookupDialogsAdditionalFields>
        <lookupDialogsAdditionalFields>finalQuote__c</lookupDialogsAdditionalFields>
        <massQuickActions>Create_MQA_Contact</massQuickActions>
        <searchResultsAdditionalFields>CREATEDBY_USER</searchResultsAdditionalFields>
    </searchLayouts>
    . . .
</CustomObject>

so if you have Winter '19 org, your package.xml should contains the following:

<types>
    <members>YourObjectname.YourQuickActionName</members>
    <name>QuickAction</name>
</types>

<types>
    <members>YourObjectname</members>
    <name>CustomObject</name>
</types>
<version>44.0</version>

you have to include quick action and object in your package.xml file