diff --git a/nnpdf_data/nnpdf_data/commondata/CMS_Z0J_8TEV/metadata.yaml b/nnpdf_data/nnpdf_data/commondata/CMS_Z0J_8TEV/metadata.yaml
index 4e48b845ba..18bb7b2499 100644
--- a/nnpdf_data/nnpdf_data/commondata/CMS_Z0J_8TEV/metadata.yaml
+++ b/nnpdf_data/nnpdf_data/commondata/CMS_Z0J_8TEV/metadata.yaml
@@ -1,63 +1,56 @@
 setname: CMS_Z0J_8TEV
-version: 1
-version_comment: Port of old commondata
+
 nnpdf_metadata:
   nnpdf31_process: DY NC
   experiment: CMS
+
 arXiv:
   url: https://arxiv.org/abs/1504.03511
   journal: Phys. Lett. B749 (2015) 187
 iNSPIRE:
-  url: ''
+  url: https://inspirehep.net/literature/1359450
 hepdata:
-  url: None
-  version: -1
+  url: https://www.hepdata.net/record/ins1359450
+  version: 1
+
+version: 2
+version_comment: Implementation in the new format
+
 implemented_observables:
 - observable_name: PT-Y
   observable:
     description: Drell-Yan Transverse Momentum Distribution
     label: CMS $Z$ $p_T$ 8 TeV $(p_T^{ll},y_{ll})$
-    units: ''
-  process_type: EWK_PTRAP
+    units: '[fb]'
+  process_type: DY_NC_PTRAP
   tables: []
   npoints: []
   ndata: 50
   plotting:
-    kinematics_override: ewk_ptrap_sqrt_scale
+    kinematics_override: identity
     dataset_label: CMS $Z$ $p_T$ 8 TeV $(p_T^{ll},y_{ll})$
     y_label: $d\sigma_{Z/\gamma^{*}}/d\eta$ (fb)
     figure_by:
-    - k2
-    plot_x: k1
-  kinematic_coverage:
-  - k1
-  - k2
-  - k3
+    - abs_y
+    plot_x: pT
+  kinematic_coverage: [abs_y, pT, m_Z2]
   kinematics:
     variables:
-      k1:
-        description: Variable k1
-        label: k1
-        units: ''
-      k2:
-        description: Variable k2
-        label: k2
+      abs_y:
+        description: Absolute rapidity of the Z boson
+        label: $|y_Z|$
         units: ''
+      pT:
+        description: Transverse momentum of the Z boson
+        label: $p_T^Z$
+        units: GeV
       k3:
-        description: Variable k3
-        label: k3
-        units: ''
+        description: Mass of the Z boson
+        label: m_Z2
+        units: GeV$^2$
     file: kinematics_PT-Y.yaml
-  theory:
-    conversion_factor: 1.0
-    operation: 'null'
-    FK_tables:
-    - - CMSZDIFF12-CMSZDIFF12-BIN1_ptZ
-      - CMSZDIFF12-CMSZDIFF12-BIN2_ptZ
-      - CMSZDIFF12-CMSZDIFF12-BIN3_ptZ
-      - CMSZDIFF12-CMSZDIFF12-BIN4_ptZ
-      - CMSZDIFF12-CMSZDIFF12-BIN5_ptZ
-  data_uncertainties: []
+  data_central: data_legacy_PT-Y.yaml
+  data_uncertainties: [uncertainties_PT-Y.yaml]
   variants:
     legacy:
       data_uncertainties:
@@ -71,5 +64,13 @@ implemented_observables:
     legacy_10:
       data_uncertainties:
       - uncertainties_PT-Y_sys_10.yaml
-  data_central: data_legacy_PT-Y.yaml
+  theory:
+    conversion_factor: 1.0
+    operation: 'null'
+    FK_tables:
+    - - CMSZDIFF12-CMSZDIFF12-BIN1_ptZ
+      - CMSZDIFF12-CMSZDIFF12-BIN2_ptZ
+      - CMSZDIFF12-CMSZDIFF12-BIN3_ptZ
+      - CMSZDIFF12-CMSZDIFF12-BIN4_ptZ
+      - CMSZDIFF12-CMSZDIFF12-BIN5_ptZ
   ported_from: CMSZDIFF12
diff --git a/validphys2/src/validphys/process_options.py b/validphys2/src/validphys/process_options.py
index 7878a6c30a..2c5a46c7a5 100644
--- a/validphys2/src/validphys/process_options.py
+++ b/validphys2/src/validphys/process_options.py
@@ -39,6 +39,7 @@ class _Vars:
     eta_2 = "eta_2"
     m_ll = "m_ll"
     m_ll2 = "m_ll2"
+    abs_y = "abs_y"
 
 
 class _KinematicsInformation:
@@ -447,6 +448,7 @@ def _dymll_xq2map(kin_info):
         _Vars.m_Z2,
         _Vars.sqrts,
         _Vars.y,
+        _Vars.abs_y,
         _Vars.eta,
         _Vars.m_ll2,
     ),