diff --git a/notebooks/LPD/LPD_Correct_Fast.ipynb b/notebooks/LPD/LPD_Correct_Fast.ipynb
index fec39227a975935f1b9ad75259db527eb03e20f1..e841269afbd6454e8df41e060cc2dfa32675bd12 100644
--- a/notebooks/LPD/LPD_Correct_Fast.ipynb
+++ b/notebooks/LPD/LPD_Correct_Fast.ipynb
@@ -605,9 +605,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "pycal",
+   "display_name": ".cal2_venv",
    "language": "python",
-   "name": "pycal"
+   "name": "python3"
   },
   "language_info": {
    "codemirror_mode": {
@@ -619,7 +619,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.11"
+   "version": "3.8.11 (default, Jul  2 2021, 14:23:46) \n[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]"
+  },
+  "vscode": {
+   "interpreter": {
+    "hash": "8817b9fbc45d4ec68a62bc54fa52c1c5ac00d5619f7fe87d01def1798ea4889e"
+   }
   }
  },
  "nbformat": 4,
diff --git a/notebooks/LPD/LPD_retrieve_constants_precorrection.ipynb b/notebooks/LPD/LPD_retrieve_constants_precorrection.ipynb
index 5362f87e3e32b173c626ee5610496f5af63b9e28..13c7c22721d4833f0f869f54008511035dcfe625 100644
--- a/notebooks/LPD/LPD_retrieve_constants_precorrection.ipynb
+++ b/notebooks/LPD/LPD_retrieve_constants_precorrection.ipynb
@@ -45,9 +45,10 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "from logging import warning\n",
     "from pathlib import Path\n",
     "\n",
-    "from cal_tools.calcat_interface import CalCatError, LPD_CalibrationData\n",
+    "from cal_tools.calcat_interface import LPD_CalibrationData\n",
     "from cal_tools.tools import (\n",
     "    CalibrationMetadata,\n",
     "    calcat_creation_time,\n",
@@ -96,7 +97,23 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "const_data = {}\n",
+    "step_timer.start()\n",
+    "lpd_cal = LPD_CalibrationData(\n",
+    "    detector_name=karabo_id,\n",
+    "    modules=karabo_da,\n",
+    "    sensor_bias_voltage=bias_voltage,\n",
+    "    memory_cells=mem_cells,\n",
+    "    feedback_capacitor=capacitor,\n",
+    "    source_energy=photon_energy,\n",
+    "    category=category,\n",
+    "    event_at=creation_time,\n",
+    "    snapshot_at=creation_time,\n",
+    ")\n",
+    "constant_names = [\n",
+    "    \"Offset\", \"BadPixelsDark\",\n",
+    "    \"BadPixelsFF\", \"GainAmpMap\",\n",
+    "    \"FFMap\", \"RelativeGain\",\n",
+    "]\n",
     "\n",
     "print('Querying calibration database', end='', flush=True)\n",
     "start = perf_counter()\n",
@@ -116,32 +133,34 @@
     "            {'parameters_conditions_attributes': condition},\n",
     "            karabo_da=k_da, event_at=creation_time.isoformat())\n",
     "\n",
-    "        if not resp[\"success\"]:\n",
-    "            print(f\"ERROR: Constants {list(calibrations.values())} \"\n",
-    "            f\"were not retrieved, {resp['app_info']}\")\n",
-    "            for cname in calibrations.values():\n",
-    "                const_mdata[cname] = dict()\n",
-    "                const_mdata[cname][\"file-path\"] = None\n",
-    "                const_mdata[cname][\"dataset-name\"] = None\n",
-    "                const_mdata[cname][\"creation-time\"] = None     \n",
-    "            continue\n",
+    "lpd_cal_metadata = lpd_cal.metadata()\n",
     "\n",
-    "        for ccv in resp[\"data\"]:\n",
-    "            cc = ccv['calibration_constant']\n",
-    "            cname = calibrations[cc['calibration_id']]\n",
-    "            const_mdata[cname] = dict()\n",
-    "            const_mdata[cname][\"file-path\"] = str(Path(ccv['path_to_file']) / ccv['file_name'])\n",
-    "            const_mdata[cname][\"dataset-name\"] = ccv['data_set_name']\n",
-    "            const_mdata[cname][\"creation-time\"] = ccv['begin_at']\n",
-    "            pdu = ccv['physical_detector_unit']['physical_name']\n",
+    "# Validate the constants availability and raise/warn correspondingly. \n",
+    "for mod, ccv_dict in lpd_cal_metadata.items():\n",
+    "    missing_dark_constants = set(\n",
+    "        c for c in [\"Offset\", \"BadPixelsDark\"] if c not in ccv_dict.keys())\n",
+    "    missing_gain_constants = set(\n",
+    "        c for c in [\"BadPixelsFF\", \"GainAmpMap\", \"FFMap\", \"RelativeGain\"] if c not in ccv_dict.keys())  # noqa\n",
+    "    if missing_dark_constants:\n",
+    "        raise KeyError(\n",
+    "            f\"Dark constants {missing_dark_constants} are not available for correction. Module: {mod}\")  # noqa\n",
+    "    if missing_gain_constants:\n",
+    "        warning(\n",
+    "            f\"Gain constants {missing_gain_constants} were not retrieved. Module: {mod}\")\n",
     "\n",
-    "        print('.', end='', flush=True)\n",
-    "    retrieved_constants[k_da][\"physical-detector-unit\"] = pdu\n",
+    "for mod, ccv_dict in lpd_cal_metadata.items():\n",
+    "    mdata_dict = {\"constants\": dict()}\n",
+    "    for cname, ccv_metadata in ccv_dict.items():\n",
+    "        mdata_dict[\"constants\"][cname] = {\n",
+    "                \"path\": str(lpd_cal.caldb_root / ccv_metadata[\"path\"]),\n",
+    "                \"dataset\": ccv_metadata[\"dataset\"],\n",
+    "                \"creation-time\": ccv_metadata[\"begin_validity_at\"],\n",
+    "        }\n",
+    "    mdata_dict[\"physical-name\"] = ccv_metadata[\"physical_name\"]\n",
+    "    retrieved_constants[mod] = mdata_dict\n",
     "metadata.save()\n",
     "\n",
-    "total_time = perf_counter() - start\n",
-    "print(f'{total_time:.1f}s')\n",
-    "print(f\"Stored retrieved constants in {metadata.filename}\")"
+    "step_timer.done_step(f\"Stored retrieved constants in {metadata.filename}.\")"
    ]
   }
  ],
diff --git a/notebooks/ePix100/Correction_ePix100_NBC.ipynb b/notebooks/ePix100/Correction_ePix100_NBC.ipynb
index 1fef42f02e397998348955572ed8c55f422b6e2e..e66a4e9050afb29b0c6ad782d7e44f26999b83c5 100644
--- a/notebooks/ePix100/Correction_ePix100_NBC.ipynb
+++ b/notebooks/ePix100/Correction_ePix100_NBC.ipynb
@@ -846,9 +846,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "cal_venv",
+   "display_name": ".cal2_venv",
    "language": "python",
-   "name": "cal_venv"
+   "name": "python3"
   },
   "language_info": {
    "codemirror_mode": {
@@ -860,7 +860,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.11"
+   "version": "3.8.11 (default, Jul  2 2021, 14:23:46) \n[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]"
   },
   "latex_envs": {
    "LaTeX_envs_menu_present": true,
@@ -878,6 +878,11 @@
    "latex_user_defs": false,
    "report_style_numbering": false,
    "user_envs_cfg": false
+  },
+  "vscode": {
+   "interpreter": {
+    "hash": "8817b9fbc45d4ec68a62bc54fa52c1c5ac00d5619f7fe87d01def1798ea4889e"
+   }
   }
  },
  "nbformat": 4,
diff --git a/notebooks/ePix100/ePix100_retrieve_constants_precorrection.ipynb b/notebooks/ePix100/ePix100_retrieve_constants_precorrection.ipynb
index d788555091895816de6f1b098e7cb32a8e9a836a..a3bf60258927e6c2eb119d499d291db6058c4890 100644
--- a/notebooks/ePix100/ePix100_retrieve_constants_precorrection.ipynb
+++ b/notebooks/ePix100/ePix100_retrieve_constants_precorrection.ipynb
@@ -193,9 +193,9 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.8.11 ('.cal4_venv')",
+   "display_name": "cal2_venv",
    "language": "python",
-   "name": "python3"
+   "name": "cal2_venv"
   },
   "language_info": {
    "codemirror_mode": {
@@ -207,7 +207,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.11"
+   "version": "3.8.11 (default, Jul  2 2021, 14:23:46) \n[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]"
   },
   "orig_nbformat": 4,
   "vscode": {