diff --git a/xero-payroll-au.yaml b/xero-payroll-au.yaml
index 2c61390d8..5e2da1b89 100644
--- a/xero-payroll-au.yaml
+++ b/xero-payroll-au.yaml
@@ -1647,7 +1647,7 @@ paths:
                       EmploymentTerminationPaymentType: O
                       CurrentRecord: true
         "400":
-          description: invalid input, object invalid - When IsQualifyingEarnings supplied it will be validated against the IsExemptFromSuper and other fields.
+          description: invalid input, object invalid - IsQualifyingEarnings is required. IsQualifyingEarnings cannot be true when IsExemptFromSuper is true.
       requestBody:
         required: true
         content:
@@ -4230,6 +4230,8 @@ components:
           example: General expenses
     EarningsRate:
       type: object
+      required:
+        - IsQualifyingEarnings
       properties:
         Name:
           description: Name of the earnings rate (max length = 100)
@@ -4258,7 +4260,7 @@ components:
           type: boolean
           example: false
         IsQualifyingEarnings:
-          description: Optional Boolean to determine if the earnings rate is considered as qualifying earnings for superannuation guarantee calculations. When not specified value is calculated based on earnings type and superannuation settings
+          description: Boolean to determine if the earnings rate is considered as qualifying earnings for superannuation guarantee calculations
           type: boolean
           example: true
         AllowanceContributesToAnnualLeaveRate:
@@ -4361,6 +4363,8 @@ components:
           example: true
     LeaveType:
       type: object
+      required:
+        - IsQualifyingEarnings
       properties:
         Name:
           description: Name of the earnings rate (max length = 100)
@@ -4411,7 +4415,7 @@ components:
           type: boolean
           example: true
         IsQualifyingEarnings:
-          description: Optional Boolean to determine if the earnings rate is considered as qualifying earnings for superannuation guarantee calculations. When not specified value is calculated based on earnings type and superannuation settings
+          description: Boolean to determine if the leave type is considered as qualifying earnings for superannuation guarantee calculations
           type: boolean
           example: true
     ReimbursementType:
@@ -4549,7 +4553,7 @@ components:
           x-is-msdate-time: true
           example: /Date(1583967733054+0000)/
         IncludeLeaveLoadingInQualifyingEarnings:
-          description: Optional Boolean to determine if leave loading is considered as qualifying earnings for superannuation guarantee calculations
+          description: Boolean to determine if leave loading is considered as qualifying earnings for superannuation guarantee calculations. Required when IncludeLeaveLoadingInSGC is specified in the payload
           type: boolean
           example: true
       type: object
@@ -4770,6 +4774,8 @@ components:
             $ref: "#/components/schemas/LeaveLine"
     LeaveLine:
       type: object
+      required:
+        - IsQualifyingEarnings
       properties:
         LeaveTypeID:
           description: Xero leave type identifier
@@ -4787,7 +4793,7 @@ components:
           type: boolean
           example: true
         IsQualifyingEarnings:
-          description: Optional Boolean to determine if the earnings rate is considered as qualifying earnings for superannuation guarantee calculations. When not specified value is calculated based on superannuation settings
+          description: Boolean to determine if the leave line is considered as qualifying earnings for superannuation guarantee calculations
           type: boolean
           example: true
         NumberOfUnits: