diff --git a/server/accounting/qb-receivables-lines.js b/server/accounting/qb-receivables-lines.js
index 107b081f7..3e3fb4be5 100644
--- a/server/accounting/qb-receivables-lines.js
+++ b/server/accounting/qb-receivables-lines.js
@@ -9,6 +9,7 @@ exports.default = function ({
   qbo = false,
   items,
   taxCodes,
+  classes,
 }) {
   const InvoiceLineAdd = [];
   const responsibilityCenters = bodyshop.md_responsibility_centers;
@@ -95,6 +96,9 @@ exports.default = function ({
             DetailType: "SalesItemLineDetail",
             Amount: DineroAmount,
             SalesItemLineDetail: {
+              ...(jobs_by_pk.class
+                ? { ClassRef: { value: classes[jobs_by_pk.class] } }
+                : {}),
               ItemRef: {
                 value: items[account.accountitem],
               },
@@ -161,6 +165,9 @@ exports.default = function ({
             DetailType: "SalesItemLineDetail",
             Amount: DineroAmount,
             SalesItemLineDetail: {
+              ...(jobs_by_pk.class
+                ? { ClassRef: { value: classes[jobs_by_pk.class] } }
+                : {}),
               ItemRef: {
                 value: items[account.accountitem],
               },
@@ -227,6 +234,9 @@ exports.default = function ({
               ItemRef: {
                 value: items[mapaAccount.accountitem],
               },
+              ...(jobs_by_pk.class
+                ? { ClassRef: { value: classes[jobs_by_pk.class] } }
+                : {}),
               TaxCodeRef: {
                 value: QboTaxId,
               },
@@ -290,6 +300,9 @@ exports.default = function ({
               ItemRef: {
                 value: items[mashAccount.accountitem],
               },
+              ...(jobs_by_pk.class
+                ? { ClassRef: { value: classes[jobs_by_pk.class] } }
+                : {}),
               TaxCodeRef: {
                 value: QboTaxId,
               },
@@ -367,6 +380,9 @@ exports.default = function ({
           amount: Math.round((jobs_by_pk.towing_payable || 0) * 100),
         }).toFormat(DineroQbFormat),
         SalesItemLineDetail: {
+          ...(jobs_by_pk.class
+            ? { ClassRef: { value: classes[jobs_by_pk.class] } }
+            : {}),
           ItemRef: {
             value: items[account.accountitem],
           },
@@ -415,6 +431,9 @@ exports.default = function ({
           amount: Math.round((jobs_by_pk.storage_payable || 0) * 100),
         }).toFormat(DineroQbFormat),
         SalesItemLineDetail: {
+          ...(jobs_by_pk.class
+            ? { ClassRef: { value: classes[jobs_by_pk.class] } }
+            : {}),
           ItemRef: {
             value: items[account.accountitem],
           },
@@ -466,6 +485,9 @@ exports.default = function ({
           amount: Math.round((jobs_by_pk.adjustment_bottom_line || 0) * 100),
         }).toFormat(DineroQbFormat),
         SalesItemLineDetail: {
+          ...(jobs_by_pk.class
+            ? { ClassRef: { value: classes[jobs_by_pk.class] } }
+            : {}),
           ItemRef: {
             value: items[account.accountitem],
           },
@@ -554,6 +576,9 @@ exports.default = function ({
           DineroQbFormat
         ),
         SalesItemLineDetail: {
+          ...(jobs_by_pk.class
+            ? { ClassRef: { value: classes[jobs_by_pk.class] } }
+            : {}),
           ItemRef: {
             value: items["PVRT"],
           },
diff --git a/server/accounting/qbo/qbo-payables.js b/server/accounting/qbo/qbo-payables.js
index 978dcc5ac..80bd07f54 100644
--- a/server/accounting/qbo/qbo-payables.js
+++ b/server/accounting/qbo/qbo-payables.js
@@ -253,7 +253,7 @@ const generateBillLine = (
     DetailType: "AccountBasedExpenseLineDetail",
 
     AccountBasedExpenseLineDetail: {
-      ...(jobClass ? { ClassRef: { Id: classes[jobClass] } } : {}),
+      ...(jobClass ? { ClassRef: { value: classes[jobClass] } } : {}),
       TaxCodeRef: {
         value:
           taxCodes[findTaxCode(billLine.applicable_taxes, ioSalesTaxCodes)],
@@ -323,7 +323,7 @@ async function QueryMetaData(oauthClient, qbo_realmId, req) {
     classes.json.QueryResponse &&
     classes.json.QueryResponse.Class &&
     classes.json.QueryResponse.Class.forEach((t) => {
-      accountMapping[t.Name] = t.Id;
+      classMapping[t.Name] = t.Id;
     });
 
   return {
diff --git a/server/accounting/qbo/qbo-receivables.js b/server/accounting/qbo/qbo-receivables.js
index 450621030..e676a1d52 100644
--- a/server/accounting/qbo/qbo-receivables.js
+++ b/server/accounting/qbo/qbo-receivables.js
@@ -402,7 +402,7 @@ async function QueryMetaData(oauthClient, qbo_realmId, req) {
     classes.json.QueryResponse &&
     classes.json.QueryResponse.Class &&
     classes.json.QueryResponse.Class.forEach((t) => {
-      itemMapping[t.Name] = t.Id;
+      classMapping[t.Name] = t.Id;
     });
 
   return {
@@ -431,13 +431,14 @@ async function InsertInvoice(
     qbo: true,
     items,
     taxCodes,
+    classes
   });
 
   const invoiceObj = {
     Line: InvoiceLineAdd,
     TxnDate: moment(job.date_invoiced).format("YYYY-MM-DD"),
     DocNumber: job.ro_number,
-    ...(job.class ? { ClassRef: { Id: classes[job.class] } } : {}),
+    ...(job.class ? { ClassRef: { value: classes[job.class] } } : {}),
     CustomerMemo: {
       value: `${job.clm_no ? `Claim No: ${job.clm_no}` : ``}${
         job.po_number ? `PO No: ${job.po_number}` : ``