diff --git a/CHANGELOG.md b/CHANGELOG.md
index fe4888737..0dbcd60fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 * Allow Editing of "Renewal Date" and "Subscription to" on open purchase order line. Refs UIOR-1078.
 * Add missed permission to fetch org types in view only mode. Refs UIOR-1168.
 * Preview contains blank page when trying to print an order. Refs UIOR-1173.
+* Do not disable account numbers having only one account available. Refs UIOR-1174.
 
 ## [5.0.0](https://github.com/folio-org/ui-orders/tree/v5.0.0) (2023-10-12)
 [Full Changelog](https://github.com/folio-org/ui-orders/compare/v4.0.3...v5.0.0)
diff --git a/src/components/POLine/Vendor/VendorForm.js b/src/components/POLine/Vendor/VendorForm.js
index a6ca1c083..0b1375df7 100644
--- a/src/components/POLine/Vendor/VendorForm.js
+++ b/src/components/POLine/Vendor/VendorForm.js
@@ -40,7 +40,10 @@ const VendorForm = ({
   const activeAccountOptions = useMemo(() => {
     const message = ` - ${formatMessage({ id: 'ui-orders.inactive' })}`;
     const activeAccounts = accounts.filter(({ accountStatus, accountNo }) => {
-      return accountStatus === ACTIVE || accountNo === initialAccountNumber.current;
+      return (
+        accountStatus?.toLowerCase() === ACTIVE.toLowerCase()
+        || accountNo === initialAccountNumber.current
+      );
     });
 
     return activeAccounts.map(({ name, accountNo, accountStatus }) => ({
@@ -58,14 +61,6 @@ const VendorForm = ({
     }, [change, getState, integrationConfigs],
   );
 
-  const accountNumberDisabled = useMemo(() => {
-    const hasCurrentAccountNumber = accounts.some(({ accountNo }) => accountNo === currentAccountNumber);
-    const isOnlyOneActiveAccount = activeAccountOptions.length === 1;
-    const noActiveAccounts = activeAccountOptions.length === 0;
-
-    return noActiveAccounts || (hasCurrentAccountNumber && isOnlyOneActiveAccount);
-  }, [accounts, activeAccountOptions, currentAccountNumber]);
-
   const isSelectedAccountInactive = useMemo(() => {
     return accounts.some(({ accountNo, accountStatus }) => {
       return accountNo === currentAccountNumber && accountStatus === INACTIVE;
@@ -85,7 +80,7 @@ const VendorForm = ({
           >
             <FieldVendorAccountNumber
               accounts={activeAccountOptions}
-              disabled={isPostPendingOrder || accountNumberDisabled}
+              disabled={isPostPendingOrder}
               onChange={onAccountChange}
             />
             {