You need to sign in to do that
Don't have an account?

Adding cutom fields to Standard object threw metadata
You can add fields and lookup field in your standard object by going to Customize.
Example for a Contact object, you go to Customize->Contacts-> fields
Or you can "push" a standard object by the metadata like this one:
<?xml version="1.0" encoding="UTF-8"?><CustomObject xmlns="http://soap.sforce.com/2006/04/metadata"> <fields> <fullName>JobRequisition__c</fullName> <label>Job Requisition</label> <referenceTo>Job_Req__c</referenceTo> <relationshipLabel>Contacts</relationshipLabel> <relationshipName>Contacts</relationshipName> <type>Lookup</type> </fields> <fields> <fullName>Languages__c</fullName> <label>Languages</label> <length>100</length> <type>Text</type> </fields> <fields> <fullName>Level__c</fullName> <label>Level</label> <picklist> <picklistValues> <fullName>Secondary</fullName> <default>false</default> </picklistValues> <picklistValues> <fullName>Tertiary</fullName> <default>false</default> </picklistValues> <picklistValues> <fullName>Primary</fullName> <default>false</default> </picklistValues> <sorted>false</sorted> </picklist> <type>Picklist</type> </fields></CustomObject>
<?xml version="1.0" encoding="UTF-8"?><CustomObject xmlns="http://soap.sforce.com/2006/04/metadata"/>