The Ant Migration Tool is retired with Spring ’24. The tool continues to
function as-is for future API versions but isn’t updated with new functionality and isn’t
supported. If Salesforce adds a new feature that is incompatible with Ant, the Ant Migration
Tool won't be updated to support it. To manage metadata changes, switch to Salesforce CLI for a
modern, supported developer experience.
To retrieve standard objects and/or custom fields on standard objects, you must name the
component in package.xml. The following
package.xml file will retrieve a single field
EngineeringReqNumber__c, on the Case object, as well as the
entire Account object.
Custom objects and standard objects should be specified in the same <types> section, the one containing <name>CustomObject</name>.