diff --git a/SAS/TMSS/backend/src/tmss/tmssapp/adapters/sip.py b/SAS/TMSS/backend/src/tmss/tmssapp/adapters/sip.py
index 523ae564651bef22a869def7868b8ea2a2f9e429..5f664674ccaadabb2bfa0ec90c1a77e3a2d3093e 100644
--- a/SAS/TMSS/backend/src/tmss/tmssapp/adapters/sip.py
+++ b/SAS/TMSS/backend/src/tmss/tmssapp/adapters/sip.py
@@ -186,7 +186,7 @@ def create_sip_representation_for_subtask(subtask: Subtask, parset_sip_identifie
                         'duration': isodate.duration_isoformat(subtask.duration), # note below that we use on_duration for observations
                         'identifier': subtask_sip_identifier,
                         'observation_identifier': observationId_identifier,
-                        'relations': [siplib.ProcessRelation(identifier=get_siplib_identifier(scheduling_unit_blueprint.global_identifier, "SchedulingUnitBlueprint id=%s" % scheduling_unit_blueprint.id))],  # (GroupID)
+                        'relations': [],  # (GroupID is deprecated)
                         'parset_identifier': parset_sip_identifier}
 
     # determine subtask specific properties and add subtask representation to Sip object
@@ -279,7 +279,7 @@ def create_sip_representation_for_subtask(subtask: Subtask, parset_sip_identifie
                                               numberofprocessing=1, #TODO: check, what is this?
                                               numberofcorrelateddataproducts=sap.dataproducts.filter(dataformat=Dataformat.objects.get(value=Dataformat.Choices.MEASUREMENTSET.value), producer__id__in=[subtask_output.id for subtask_output in SubtaskOutput.objects.filter(subtask__id=subtask.id)]).count(),
                                               numberofbeamformeddataproducts=sap.dataproducts.filter(dataformat=Dataformat.objects.get(value=Dataformat.Choices.BEAMFORMED.value), producer__id__in=[subtask_output.id for subtask_output in SubtaskOutput.objects.filter(subtask__id=subtask.id)]).count(),
-                                              relations=[siplib.ProcessRelation(get_siplib_identifier(scheduling_unit_blueprint.global_identifier, "SchedulingUnitBlueprint id=%s" % scheduling_unit_blueprint.id))],  # (GroupID)
+                                              relations=[],  # (GroupID is deprecated)
                                               correlatorprocessing=siplib.CorrelatorProcessing(integrationinterval=integrationinterval,
                                                                                                integrationinterval_unit='s',
                                                                                                channelwidth_frequency=channelwidth_frequency,