The Salesforce API returns error messages when it can’t deploy metadata. Learn more about the error, what the cause is and how you can fix the problem.
INVALID_OR_NULL_FOR_RESTRICTED_PICKLIST
Users may encounter this error when 'Restrict picklist to the values defined in the value set' is enabled in the picklist field's setup or the value being inserted into the field is not available in the object's record type or the picklist value is null for the target field. If the error message contains the field name for example, `Picklist__c.Sample__c’ add the `Sample` value to the `Picklist__c` field and if it’s not activated, click to activate the value.