diff --git a/.changeset/shy-poems-lie.md b/.changeset/shy-poems-lie.md
new file mode 100644
index 0000000000000..2b01b00286e19
--- /dev/null
+++ b/.changeset/shy-poems-lie.md
@@ -0,0 +1,5 @@
+---
+"@medusajs/admin-ui": patch
+---
+
+fix(admin-ui): update edit-allocation sidebar
diff --git a/packages/admin-ui/ui/src/domain/orders/details/allocations/edit-allocation-modal.tsx b/packages/admin-ui/ui/src/domain/orders/details/allocations/edit-allocation-modal.tsx
index 166944f2669a7..d095a5f66f9b9 100644
--- a/packages/admin-ui/ui/src/domain/orders/details/allocations/edit-allocation-modal.tsx
+++ b/packages/admin-ui/ui/src/domain/orders/details/allocations/edit-allocation-modal.tsx
@@ -1,13 +1,11 @@
-import {
-  AllocationLineItem,
-  AllocationLineItemForm,
-} from "./allocate-items-modal"
+import { AllocationLineItemForm } from "./allocate-items-modal"
 import { Controller, useForm, useWatch } from "react-hook-form"
 import { LineItem, ReservationItemDTO } from "@medusajs/medusa"
 import {
   useAdminDeleteReservation,
   useAdminStockLocations,
   useAdminUpdateReservation,
+  useAdminVariantsInventory,
 } from "medusa-react"
 import { useEffect, useMemo } from "react"
 
@@ -15,8 +13,9 @@ import Button from "../../../../components/fundamentals/button"
 import CrossIcon from "../../../../components/fundamentals/icons/cross-icon"
 import Select from "../../../../components/molecules/select/next-select/select"
 import SideModal from "../../../../components/molecules/modal/side-modal"
-import { nestedForm } from "../../../../utils/nested-form"
 import useNotification from "../../../../hooks/use-notification"
+import Thumbnail from "../../../../components/atoms/thumbnail"
+import { getFulfillableQuantity } from "../create-fulfillment/item-table"
 
 type EditAllocationLineItemForm = {
   location: { label: string; value: string }
@@ -48,6 +47,10 @@ const EditAllocationDrawer = ({
 
   const { stock_locations } = useAdminStockLocations(stockLocationsFilter)
 
+  const { variant, isLoading } = useAdminVariantsInventory(
+    item.variant_id as string
+  )
+
   const { mutate: updateReservation } = useAdminUpdateReservation(
     reservation?.id || ""
   )
@@ -126,21 +129,51 @@ const EditAllocationDrawer = ({
     )
   }
 
+  const { availableQuantity, inStockQuantity } = useMemo(() => {
+    if (isLoading || !selectedLocation?.value || !variant) {
+      return {}
+    }
+    const { inventory } = variant
+    const locationInventory = inventory[0].location_levels?.find(
+      (inv) => inv.location_id === selectedLocation?.value
+    )
+    if (!locationInventory) {
+      return {}
+    }
+    return {
+      availableQuantity: locationInventory.available_quantity,
+      inStockQuantity: locationInventory.stocked_quantity,
+    }
+  }, [variant, selectedLocation, isLoading])
+
+  // we can adjust up to fulfillable quantity - the quantity reserved in other reservations
+  const lineItemReservationCapacity =
+    getFulfillableQuantity(item) -
+    (totalReservedQuantity - (reservation?.quantity || 0))
+
+  const inventoryItemReservationCapacity =
+    typeof availableQuantity === "number" ? availableQuantity : 0
+
+  const maxReservation = Math.min(
+    lineItemReservationCapacity,
+    inventoryItemReservationCapacity
+  )
+
   return (
     <SideModal isVisible close={close}>
       <form
         className="text-grey-90 h-full w-full"
         onSubmit={handleSubmit(submit)}
       >
-        <div className="flex h-full flex-col justify-between ">
-          <div>
+        <div className="flex h-full flex-col justify-between">
+          <div className="flex grow flex-col">
             <div className="border-grey-20 flex items-center justify-between border-b px-8 py-6">
               <h1 className="inter-large-semibold ">Edit allocation</h1>
               <Button variant="ghost" className="p-1.5" onClick={close}>
                 <CrossIcon />
               </Button>
             </div>
-            <div className="flex flex-col gap-y-8 px-8 pt-6">
+            <div className="flex h-full flex-col justify-between gap-y-8 px-8 pb-8 pt-6">
               <div>
                 <h2 className="inter-base-semibold">Location</h2>
                 <span className="inter-base-regular text-grey-50">
@@ -152,28 +185,81 @@ const EditAllocationDrawer = ({
                   rules={{ required: true }}
                   render={({ field: { value, onChange } }) => (
                     <Select
+                      className="mt-4"
                       value={value}
                       onChange={onChange}
                       options={locationOptions}
                     />
                   )}
                 />
+                <div>
+                  <h2 className="inter-base-semibold mt-8">
+                    Items to Allocate
+                  </h2>
+                  <span className="inter-base-regular text-grey-50">
+                    Select the number of items that you wish to allocate.
+                  </span>
+                  <div className="gap-x-base mt-6 flex w-full">
+                    <div className="min-w-9">
+                      <Thumbnail size="medium" src={item.thumbnail} />
+                    </div>
+                    <div className="text-grey-50 truncate">
+                      <p className="inter-base-semibold text-grey-90 truncate">
+                        {item.title}
+                      </p>
+                      <p className="inter-base-semibold gap-x-2xsmall flex">
+                        <p>{`(${item.variant.sku})`}</p>
+                        <span>&#183;</span>
+                        <span className="inter-base-regular gap-x-2xsmall flex">
+                          {item.variant.options
+                            ?.map((option, i) => [
+                              <span key={`${option.id}-${i}`}>
+                                {option.value}
+                              </span>,
+                              <span key={`${option.id}-${i}.dot`}>&#183;</span>,
+                            ])
+                            .flat()
+                            .slice(0, -1) ||
+                            item.variant.title ||
+                            "-"}
+                        </span>
+                      </p>
+                    </div>
+                  </div>
+
+                  <div
+                    className={`
+                  bg-grey-5 text-grey-50 border-grey-20 
+                  mt-8
+                  grid border-collapse grid-cols-2 grid-rows-3 
+                  [&>*]:border-r [&>*]:border-b [&>*]:py-2 
+                  [&>*:nth-child(odd)]:border-l [&>*:nth-child(odd)]:pl-4 
+                  [&>*:nth-child(even)]:pr-4 [&>*:nth-child(even)]:text-right 
+                  [&>*:nth-child(-n+2)]:border-t`}
+                  >
+                    <div className="rounded-tl-rounded">In stock</div>
+                    <div className="rounded-tr-rounded">
+                      {inStockQuantity ?? "N/A"}
+                    </div>
+                    <div className="">Available</div>
+                    <div className="">{availableQuantity ?? "N/A"}</div>
+                    <div className="rounded-bl-rounded">Allocate</div>
+                    <div className="bg-grey-0 rounded-br-rounded text-grey-80 flex items-center">
+                      <input
+                        className="remove-number-spinner inter-base-regular w-full shrink border-none bg-transparent text-right font-normal outline-none outline-0"
+                        {...form.register("item.quantity", {
+                          valueAsNumber: true,
+                        })}
+                        type="number"
+                        min={0}
+                        max={maxReservation}
+                      />
+                      <span className="text-grey-50 nowrap whitespace-nowrap pl-2">{` / ${maxReservation} requested`}</span>
+                    </div>
+                  </div>
+                </div>
               </div>
-              <div>
-                <h2 className="inter-base-semibold">Items to Allocate</h2>
-                <span className="inter-base-regular text-grey-50">
-                  Select the number of items that you wish to allocate.
-                </span>
-                <AllocationLineItem
-                  form={nestedForm(form, `item` as "item")}
-                  item={item}
-                  compact
-                  locationId={selectedLocation?.value}
-                  reservedQuantity={
-                    totalReservedQuantity - (reservation?.quantity || 0)
-                  }
-                />
-              </div>
+
               <Button
                 variant="ghost"
                 className="my-1 w-full border text-rose-50"