diff --git a/src/stores/dataStore.ts b/src/stores/dataStore.ts
index acdbc7e..af13037 100644
--- a/src/stores/dataStore.ts
+++ b/src/stores/dataStore.ts
@@ -1,11 +1,13 @@
 import { defineStore } from 'pinia'
 import { ref, reactive } from 'vue'
 import { useGlobalDataStore } from '@/stores/globalDataStore'
+import { useGlobalStore } from '@/stores/globalStore'
 import { useToastStore } from '@/components/global/toastStore'
 import axios from 'axios'
 
 export const useDataStore = defineStore('dataStore', () => {
   const globalDataStore = useGlobalDataStore()
+  const globalStore = useGlobalStore()
   const toastStore = useToastStore()
 
   const siteBase = ref<string>(import.meta.env.VITE_API_URL)
@@ -26,6 +28,8 @@ export const useDataStore = defineStore('dataStore', () => {
       options?: Record<string, any>
       toast?: Record<string, any>
       full?: boolean
+      /** Bu status kodları için CheckApiError atlanır, hata objesi döner */
+      skipErrorForStatuses?: number[]
     } = {}
   ) => {
     try {
@@ -37,7 +41,10 @@ export const useDataStore = defineStore('dataStore', () => {
       if (data.headers !== undefined) sendData.headers = data.headers
 
       const response = await axios.get(apiBase.value + api, sendData)
-      console.log('response --', api, response)
+
+      if (import.meta.env.DEV) {
+        console.log('response --', api, response)
+      }
 
       if (data.toast !== undefined) {
         toastStore.AddToast(data.toast.toast, data.toast.type, data.toast.timeout)
@@ -49,7 +56,11 @@ export const useDataStore = defineStore('dataStore', () => {
         return response.data
       }
     } catch (error: any) {
-      CheckApiError(error.response?.status, error.response?.data)
+      const status = error.response?.status
+      if (data.skipErrorForStatuses?.includes(status)) {
+        return { _error: true, status, data: error.response?.data }
+      }
+      CheckApiError(status, error.response?.data)
       console.error('Hata oluştu -:', error)
       return 'errorfalse'
     }
@@ -215,14 +226,82 @@ export const useDataStore = defineStore('dataStore', () => {
     }
   }
 
+  const normalizeLocationKey = (value: string | number | null | undefined): string => {
+    return globalStore.trToEngLower(String(value ?? '').trim())
+  }
+
+  const setLocationLookupMaps = (list: Record<string, any>[]) => {
+    Object.keys(globalDataStore.ilMapById).forEach((key) => {
+      delete globalDataStore.ilMapById[key]
+    })
+    Object.keys(globalDataStore.ilMapByAd).forEach((key) => {
+      delete globalDataStore.ilMapByAd[key]
+    })
+
+    list.forEach((item: Record<string, any>) => {
+      globalDataStore.ilMapById[String(item.id)] = item
+      globalDataStore.ilMapByAd[normalizeLocationKey(item.ad)] = item
+    })
+  }
+
   const GetIlList = async () => {
     if (globalDataStore.ilList.length === 0) {
-      let list = await dataGet('Il')
+      const start = performance.now()
+      let list = await dataGet('Il/summary')
 
-      if (list !== 'errorfalse') globalDataStore.ilList = list
+      if (list !== 'errorfalse') {
+        globalDataStore.ilList = list
+        setLocationLookupMaps(list)
+        globalDataStore.locationPerfStats.ilListCount = list.length
+        globalDataStore.locationPerfStats.ilListRequestMs = Math.round(performance.now() - start)
+      }
     }
   }
 
+  const GetIlcelerByIlId = async (ilId: string | number | null | undefined) => {
+    if (ilId === null || ilId === undefined || ilId === '') return []
+
+    const cacheKey = String(ilId)
+    const cachedList = globalDataStore.ilcelerByIlId[cacheKey]
+    if (cachedList !== undefined) return cachedList
+
+    const start = performance.now()
+    const list = await dataGet(`Il/${ilId}/ilceler`)
+    if (list === 'errorfalse') return []
+
+    globalDataStore.ilcelerByIlId[cacheKey] = list
+    globalDataStore.locationPerfStats.ilceRequestMs = Math.round(performance.now() - start)
+    return list
+  }
+
+  const GetMahallelerByIlceId = async (ilceId: string | number | null | undefined) => {
+    if (ilceId === null || ilceId === undefined || ilceId === '') return []
+
+    const cacheKey = String(ilceId)
+    const cachedList = globalDataStore.mahallelerByIlceId[cacheKey]
+    if (cachedList !== undefined) return cachedList
+
+    const start = performance.now()
+    const list = await dataGet(`Ilce/${ilceId}/mahalleler`)
+    if (list === 'errorfalse') return []
+
+    globalDataStore.mahallelerByIlceId[cacheKey] = list
+    globalDataStore.locationPerfStats.mahalleRequestMs = Math.round(
+      performance.now() - start
+    )
+    return list
+  }
+
+  const GetIlById = (ilId: string | number | null | undefined) => {
+    if (ilId === null || ilId === undefined || ilId === '') return undefined
+    return globalDataStore.ilMapById[String(ilId)]
+  }
+
+  const GetIlByName = (ilName: string | null | undefined) => {
+    if (ilName === null || ilName === undefined || ilName === '') return undefined
+    return globalDataStore.ilMapByAd[normalizeLocationKey(ilName)]
+  }
+
   return {
     isLoading,
     siteBase,
@@ -237,6 +316,10 @@ export const useDataStore = defineStore('dataStore', () => {
     dataPut,
     dataDelete,
     GetCustomerTipList,
-    GetIlList
+    GetIlList,
+    GetIlcelerByIlId,
+    GetMahallelerByIlceId,
+    GetIlById,
+    GetIlByName
   }
 })
diff --git a/src/stores/globalDataStore.ts b/src/stores/globalDataStore.ts
index bc4fb74..61528a0 100644
--- a/src/stores/globalDataStore.ts
+++ b/src/stores/globalDataStore.ts
@@ -1,12 +1,27 @@
 import { defineStore } from 'pinia'
-import { ref } from 'vue'
+import { reactive, ref } from 'vue'
 
 export const useGlobalDataStore = defineStore('globalDataStore', () => {
   const customerTips = ref<Record<string, any>[]>([])
-  const ilList = ref<Record<string, any>[]>([])  
+  const ilList = ref<Record<string, any>[]>([])
+  const ilMapById = reactive<Record<string, Record<string, any>>>({})
+  const ilMapByAd = reactive<Record<string, Record<string, any>>>({})
+  const ilcelerByIlId = reactive<Record<string, Record<string, any>[]>>({})
+  const mahallelerByIlceId = reactive<Record<string, Record<string, any>[]>>({})
+  const locationPerfStats = reactive({
+    ilListCount: 0,
+    ilListRequestMs: 0,
+    ilceRequestMs: 0,
+    mahalleRequestMs: 0
+  })
 
   return {
     customerTips,
-    ilList
+    ilList,
+    ilMapById,
+    ilMapByAd,
+    ilcelerByIlId,
+    mahallelerByIlceId,
+    locationPerfStats
   }
 })