diff --git a/asu/routers/api.py b/asu/routers/api.py
index b1d0a447..0e5c3f10 100644
--- a/asu/routers/api.py
+++ b/asu/routers/api.py
@@ -120,6 +120,11 @@ def valid_profile(profile: str, build_request: BuildRequest) -> bool:
         profiles = app.profiles[build_request.version][build_request.target]
         if profile in profiles:
             return True
+        else:
+            for supported_devices in profiles.values():
+                if profile in supported_devices:
+                    return True
+
         if len(profiles) == 1 and "generic" in profiles:
             # Handles the x86, armsr and other generic variants.
             build_request.profile = "generic"
@@ -135,9 +140,38 @@ def valid_profile(profile: str, build_request: BuildRequest) -> bool:
                 "forums for more information."
             )
 
-    build_request.profile = app.profiles[build_request.version][build_request.target][
-        build_request.profile
-    ]
+    # Translate DTS compatible strings to actual profile names:
+    # *Only firmware-selector client is suppose to send the profile directly,
+    # *translate if it is not an already translated profile
+    if build_request.profile not in app.profiles[build_request.version][build_request.target]:
+        first_occurrence = 0
+        profiles_appearances: dict[str, int] = dict()
+        for profile, supported_devices in app.profiles[build_request.version][build_request.target].items():
+            if build_request.profile in supported_devices:
+                profiles_appearances[profile] = supported_devices.index(build_request.profile)
+                
+        if len(profiles_appearances) == 1:
+            build_request.profile = profiles_appearances[0]
+        else:
+            # If there are multiple profiles including the requested DTS compatible string,
+            # select the one where it is the first in the list of SUPPORTED_DEVICES
+            logging.info(
+                f"DTS Compatible string: {build_request.profile} appears in "
+                f"multiple profiles, included in: {profiles_appearances}"
+            )
+            for profile, index in profiles_appearances.items():
+                if index == 0:
+                    first_occurrence += 1
+                    build_request.profile = profile
+            if first_occurrence != 1:
+                return validation_failure(
+                    f"Identification profile problem: {build_request.profile}. "
+                     "The requested DTS compatible string has more than one "
+                     "profile including it as the first SUPPORTED_DEVICES. "
+                     "Or it is not the first in the list for any profile. "
+                    f"{profiles_appearances} Please check the forums for more information."
+                )
+
     return ({}, None)
 
 
@@ -209,9 +243,6 @@ def api_v1_build_post(
     request: Request,
     user_agent: str = Header(None),
 ):
-    # Sanitize the profile in case the client did not (bug in older LuCI app).
-    build_request.profile = build_request.profile.replace(",", "_")
-
     add_build_event("requests")
 
     request_hash: str = get_request_hash(build_request)
diff --git a/asu/util.py b/asu/util.py
index 0c17239a..905976de 100644
--- a/asu/util.py
+++ b/asu/util.py
@@ -168,7 +168,7 @@ def get_request_hash(build_request: BuildRequest) -> str:
                 build_request.version,
                 build_request.version_code,
                 build_request.target,
-                build_request.profile,
+                build_request.profile.replace(",", "_"),
                 get_packages_hash(
                     build_request.packages_versions.keys() or build_request.packages
                 ),
@@ -561,9 +561,8 @@ def reload_profiles(app: FastAPI, version: str, target: str) -> bool:
     )
 
     app.profiles[version][target] = {
-        name.replace(",", "_"): profile
+        profile: data.get("supported_devices", [])
         for profile, data in response.json()["profiles"].items()
-        for name in data.get("supported_devices", []) + [profile]
     }
 
     return True
diff --git a/tests/test_api.py b/tests/test_api.py
index fb62343c..42f35a35 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -537,7 +537,7 @@ def test_api_build_real_ath79(app):
             target="ath79/generic",
             version="23.05.5",
             packages=["tmux", "vim"],
-            profile="8dev,carambola2",  # Test unsanitized profile.
+            profile="8dev_carambola2",
         ),
     )