diff --git a/eodag/resources/providers.yml b/eodag/resources/providers.yml
index f52695042..3b23ee832 100644
--- a/eodag/resources/providers.yml
+++ b/eodag/resources/providers.yml
@@ -4382,6 +4382,10 @@
           "end": "{id#replace_str(r'^.*_([0-9][0-9][0-9][0-9])([0-9][0-9])([0-9][0-9])([0-9][0-9])([0-9][0-9])_.*$',r'\1-\2-\3T\4%3A\5%3A00Z')}"
         }}
       - '$.id'
+  anchor_variable_list: &variable_list
+    variable:
+      - '{{"variable": {variable}}}'
+      - '$.null'
   search: !plugin
     type: PostJsonSearchWithStacQueryables
     api_endpoint: https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/search
@@ -5226,6 +5230,7 @@
         version:
           - '{{"version": "{version}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:SATELLITE_SEA_ICE_EDGE_TYPE"}}'
     SATELLITE_SEA_ICE_THICKNESS:
@@ -5283,6 +5288,7 @@
         version:
           - '{{"version": "{version}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:SATELLITE_SEA_LEVEL_GLOBAL"}}'
     SATELLITE_SEA_LEVEL_MEDITERRANEAN:
@@ -5312,6 +5318,7 @@
         origin:
           - '{{"originating_centre": "{origin}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:SEASONAL_ORIGINAL_SINGLE_LEVELS"}}'
     SEASONAL_ORIGINAL_PL:
@@ -5331,6 +5338,7 @@
         origin:
           - '{{"originating_centre": "{origin}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:SEASONAL_ORIGINAL_PRESSURE_LEVELS"}}'
     SEASONAL_POSTPROCESSED_SL:
@@ -5353,6 +5361,7 @@
         origin:
           - '{{"originating_centre": "{origin}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:SEASONAL_POSTPROCESSED_SINGLE_LEVELS"}}'
     SEASONAL_POSTPROCESSED_PL:
@@ -5377,6 +5386,7 @@
         origin:
           - '{{"originating_centre": "{origin}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:SEASONAL_POSTPROCESSED_PRESSURE_LEVELS"}}'
     SEASONAL_MONTHLY_SL:
@@ -5399,6 +5409,7 @@
         origin:
           - '{{"originating_centre": "{origin}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:SEASONAL_MONTHLY_SINGLE_LEVELS"}}'
     SEASONAL_MONTHLY_PL:
@@ -5424,6 +5435,7 @@
         origin:
           - '{{"originating_centre": "{origin}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:SEASONAL_MONTHLY_PRESSURE_LEVELS"}}'
     GLACIERS_DIST_RANDOLPH:
@@ -5443,6 +5455,7 @@
         version:
           - '{{"version": "{version}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:INSITU_GLACIERS_EXTENT"}}'
     GRIDDED_GLACIERS_MASS_CHANGE:
@@ -5466,7 +5479,7 @@
           - '{{"variable": "{variable}"}}'
           - '$.null'
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
-        orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DERIVED_GRIDDED_GLACIER_MASS_CHANGE"}}'
+        orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:DERIVED_GRIDDED_GLACIER_MASS_CHANGE"}}'
     UERRA_EUROPE_SL:
       productType: EO:ECMWF:DAT:REANALYSIS_UERRA_EUROPE_SINGLE_LEVELS
       variable: total_cloud_cover
@@ -5522,6 +5535,7 @@
         providerProductType:
           - '{{"product_type": {providerProductType}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:REANALYSIS_ERA5_SINGLE_LEVELS"}}'
     ERA5_PL:
@@ -5548,6 +5562,7 @@
         providerProductType:
           - '{{"product_type": {providerProductType}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:REANALYSIS_ERA5_PRESSURE_LEVELS"}}'
     ERA5_SL_MONTHLY:
@@ -5572,6 +5587,7 @@
         providerProductType:
           - '{{"product_type": {providerProductType}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:REANALYSIS_ERA5_SINGLE_LEVELS_MONTHLY_MEANS"}}'
     ERA5_PL_MONTHLY:
@@ -5598,6 +5614,7 @@
         providerProductType:
           - '{{"product_type": {providerProductType}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:REANALYSIS_ERA5_PRESSURE_LEVELS_MONTHLY_MEANS"}}'
     ERA5_LAND:
@@ -5617,6 +5634,7 @@
             }}
           - $.properties.startDate
         completionTimeFromAscendingNode: $.properties.endDate
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:REANALYSIS_ERA5_LAND"}}'
     ERA5_LAND_MONTHLY:
@@ -5641,6 +5659,7 @@
         providerProductType:
           - '{{"product_type": {providerProductType}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:REANALYSIS_ERA5_LAND_MONTHLY_MEANS"}}'
     CAMS_EAC4:
@@ -5658,6 +5677,7 @@
         completionTimeFromAscendingNode:
           - '{{"dtend": "{completionTimeFromAscendingNode#to_iso_utc_datetime}"}}'
           - '$.properties.enddate'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_GLOBAL_REANALYSIS_EAC4"}}'
     CAMS_GLOBAL_EMISSIONS:
@@ -5678,6 +5698,7 @@
             }}
           - $.properties.startDate
         completionTimeFromAscendingNode: $.properties.endDate
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_GLOBAL_EMISSION_INVENTORIES"}}'
     CAMS_EAC4_MONTHLY:
@@ -5693,6 +5714,7 @@
         providerProductType:
           - '{{"product_type": {providerProductType}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_GLOBAL_REANALYSIS_EAC4_MONTHLY"}}'
     CAMS_GREENHOUSE_INVERSION:
@@ -5733,6 +5755,7 @@
         type:
           - '{{"type": {type}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_EUROPE_AIR_QUALITY_REANALYSES"}}'
     CAMS_GRF:
@@ -5752,6 +5775,7 @@
       metadata_mapping:
         id: '$.id'
         <<: *month_year
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_GLOBAL_RADIATIVE_FORCINGS"}}'
     CAMS_GRF_AUX:
@@ -5772,6 +5796,7 @@
       metadata_mapping:
         id: '$.id'
         <<: *month_year
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_GLOBAL_RADIATIVE_FORCING_AUXILLIARY_VARIABLES"}}'
     CAMS_GREENHOUSE_EGG4:
@@ -5789,6 +5814,7 @@
         completionTimeFromAscendingNode:
           - '{{"dtend": "{completionTimeFromAscendingNode#to_iso_utc_datetime}"}}'
           - '$.properties.enddate'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_GLOBAL_GHG_REANALYSIS_EGG4"}}'
     CAMS_GREENHOUSE_EGG4_MONTHLY:
@@ -5808,6 +5834,7 @@
         providerProductType:
           - '{{"product_type": {providerProductType}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_GLOBAL_GHG_REANALYSIS_EGG4_MONTHLY"}}'
     CAMS_EU_AIR_QUALITY_FORECAST:
@@ -5836,6 +5863,7 @@
         type:
           - '{{"type": {type}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_EUROPE_AIR_QUALITY_FORECASTS"}}'
     CAMS_GAC_FORECAST:
@@ -5860,6 +5888,7 @@
         type:
           - '{{"type": {type}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CAMS_GLOBAL_ATMOSPHERIC_COMPOSITION_FORECASTS"}}'
     CAMS_SOLAR_RADIATION:
@@ -5914,6 +5943,7 @@
         type:
           - '{{"dataset_type": "{type}"}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CEMS_FIRE_HISTORICAL_V1"}}'
     GLOFAS_FORECAST:
@@ -5968,6 +5998,7 @@
         model:
           - '{{"hydrological_model": {model}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CEMS_GLOFAS_HISTORICAL"}}'
     GLOFAS_REFORECAST:
@@ -5995,6 +6026,7 @@
         model:
           - '{{"hydrological_model": {model}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CEMS_GLOFAS_REFORECAST"}}'
     GLOFAS_SEASONAL:
@@ -6017,6 +6049,7 @@
         model:
           - '{{"hydrological_model": {model}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CEMS_GLOFAS_SEASONAL"}}'
     GLOFAS_SEASONAL_REFORECAST:
@@ -6039,6 +6072,7 @@
         model:
           - '{{"hydrological_model": {model}}}'
           - '$.null'
+        <<: *variable_list
         defaultGeometry: 'POLYGON((180 -90, 180 90, -180 90, -180 -90, 180 -90))'
         orderLink: 'https://gateway.prod.wekeo2.eu/hda-broker/api/v1/dataaccess/download?{{"location": "{downloadLink}","product_id":"{id}", "dataset_id": "EO:ECMWF:DAT:CEMS_GLOFAS_SEASONAL_REFORECAST"}}'
     EFAS_FORECAST: