diff --git a/playground/gammadata-gmbh/saas-instance-workflow/saas-instance-creation.bpmn b/playground/gammadata-gmbh/saas-instance-workflow/saas-instance-creation.bpmn
index dc614776..a0354658 100644
--- a/playground/gammadata-gmbh/saas-instance-workflow/saas-instance-creation.bpmn
+++ b/playground/gammadata-gmbh/saas-instance-workflow/saas-instance-creation.bpmn
@@ -1,6 +1,32 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <bpmn:definitions xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" id="Definitions_96f6665" targetNamespace="http://bpmn.io/schema/bpmn" exporter="Camunda Modeler" exporterVersion="3.0.0-dev">
   <bpmn:process id="Process_1ncv23o" name="Azure-SaaS-Instance-Creation">
+    <bpmn:ioSpecification>
+      <bpmn:dataInput id="DataInput-176322225-1" name="input yaml" />
+      <bpmn:dataOutput id="DataOutput-604678140-1" name="provisioner initial input" />
+      <bpmn:dataOutput id="DataOutput-34878887-1" name="intermediate plan" />
+      <bpmn:dataOutput id="DataOutput-551739111-1" name="provisioner input yaml" />
+      <bpmn:dataOutput id="DataOutput-1284065-1" name="infra out.json" />
+      <bpmn:dataOutput id="DataOutput-719593072-1" name="infra SEQ" />
+      <bpmn:dataOutput id="DataOutput-500493671-1" name="validation output" />
+      <bpmn:dataOutput id="DataOutput-723832204-1" name="validation output" />
+      <bpmn:dataOutput id="DataOutput-592187113-1" name="validation output" />
+      <bpmn:dataOutput id="DataOutput-886587238-1" name="validation output" />
+      <bpmn:inputSet>
+        <bpmn:dataInputRefs>DataInput-176322225-1</bpmn:dataInputRefs>
+      </bpmn:inputSet>
+      <bpmn:outputSet>
+        <bpmn:dataOutputRefs>DataOutput-604678140-1</bpmn:dataOutputRefs>
+        <bpmn:dataOutputRefs>DataOutput-34878887-1</bpmn:dataOutputRefs>
+        <bpmn:dataOutputRefs>DataOutput-551739111-1</bpmn:dataOutputRefs>
+        <bpmn:dataOutputRefs>DataOutput-1284065-1</bpmn:dataOutputRefs>
+        <bpmn:dataOutputRefs>DataOutput-719593072-1</bpmn:dataOutputRefs>
+        <bpmn:dataOutputRefs>DataOutput-500493671-1</bpmn:dataOutputRefs>
+        <bpmn:dataOutputRefs>DataOutput-723832204-1</bpmn:dataOutputRefs>
+        <bpmn:dataOutputRefs>DataOutput-592187113-1</bpmn:dataOutputRefs>
+        <bpmn:dataOutputRefs>DataOutput-886587238-1</bpmn:dataOutputRefs>
+      </bpmn:outputSet>
+    </bpmn:ioSpecification>
     <bpmn:startEvent id="Event_0eqvk4j" name="Start">
       <bpmn:outgoing>Flow_04j6tle</bpmn:outgoing>
     </bpmn:startEvent>
@@ -139,7 +165,7 @@
       <bpmn:outgoing>Flow_1sdg85j</bpmn:outgoing>
     </bpmn:exclusiveGateway>
     <bpmn:sequenceFlow id="Flow_0i5yffr" sourceRef="Activity_02cov0x" targetRef="Gateway_12chsi9" />
-    <bpmn:sequenceFlow id="Flow_1ka8i2w" name="error" sourceRef="Gateway_12chsi9" targetRef="Gateway_1103dke" />
+    <bpmn:sequenceFlow id="Flow_1ka8i2w" name="Initial infra creation failed" sourceRef="Gateway_12chsi9" targetRef="Gateway_1103dke" />
     <bpmn:serviceTask id="Activity_02cov0x" name="Create build infra &#38; master keyvault">
       <bpmn:incoming>Flow_078e05j</bpmn:incoming>
       <bpmn:outgoing>Flow_0i5yffr</bpmn:outgoing>
@@ -188,12 +214,74 @@
     <bpmn:sequenceFlow id="Flow_1gibekk" sourceRef="Activity_1efgm0l" targetRef="Gateway_0fv7tib" />
     <bpmn:sequenceFlow id="Flow_0262mfl" name="OK" sourceRef="Gateway_0fv7tib" targetRef="Activity_16kqufh" />
     <bpmn:sequenceFlow id="Flow_1v0g4ev" sourceRef="Gateway_0fv7tib" targetRef="Gateway_1103dke" />
+    <bpmn:dataObject id="DataObject_1fkr08v" />
+    <bpmn:dataObject id="DataObject_05yy18d" />
   </bpmn:process>
   <bpmn:signal id="Signal_1ldrpdk" name="Signal_1ldrpdk" />
   <bpmn:error id="Error_16voijq" name="Error_16voijq" />
   <bpmn:escalation id="Escalation_18pfzgh" name="Escalation_18pfzgh" />
   <bpmndi:BPMNDiagram id="BPMNDiagram_1">
     <bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Process_1ncv23o">
+      <bpmndi:BPMNShape id="DataOutput-1284065-1DI" bpmnElement="DataOutput-1284065-1">
+        <dc:Bounds x="1112" y="435" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="1099" y="492" width="63" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataOutput-719593072-1DI" bpmnElement="DataOutput-719593072-1">
+        <dc:Bounds x="1042" y="435" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="1036" y="492" width="49" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataOutput-500493671-1DI" bpmnElement="DataOutput-500493671-1">
+        <dc:Bounds x="712" y="455" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="690" y="512" width="81" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataInput-176322225-1DI" bpmnElement="DataInput-176322225-1">
+        <dc:Bounds x="362" y="155" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="355" y="212" width="51" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataOutput-604678140-1DI" bpmnElement="DataOutput-604678140-1">
+        <dc:Bounds x="532" y="155" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="509" y="212" width="83" height="27" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataOutput-34878887-1DI" bpmnElement="DataOutput-34878887-1">
+        <dc:Bounds x="912" y="158" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="888" y="215" width="85" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataOutput-551739111-1DI" bpmnElement="DataOutput-551739111-1">
+        <dc:Bounds x="1072" y="158" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="1049" y="215" width="82" height="27" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataOutput-723832204-1DI" bpmnElement="DataOutput-723832204-1">
+        <dc:Bounds x="252" y="475" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="230" y="532" width="81" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataOutput-592187113-1DI" bpmnElement="DataOutput-592187113-1">
+        <dc:Bounds x="572" y="575" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="550" y="632" width="81" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="DataOutput-886587238-1DI" bpmnElement="DataOutput-886587238-1">
+        <dc:Bounds x="1632" y="695" width="36" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="1610" y="752" width="81" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="Gateway_1l5ftun_di" bpmnElement="Gateway_1l5ftun" isMarkerVisible="true">
         <dc:Bounds x="645" y="535" width="50" height="50" />
         <bpmndi:BPMNLabel>
@@ -263,9 +351,6 @@
       <bpmndi:BPMNShape id="Activity_1ljcy6s_di" bpmnElement="Activity_0knisbv">
         <dc:Bounds x="1150" y="520" width="100" height="80" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="Activity_0frgoo0_di" bpmnElement="Activity_1mpdo61">
-        <dc:Bounds x="760" y="520" width="100" height="80" />
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="Activity_0xo2plw_di" bpmnElement="Activity_0nf36me">
         <dc:Bounds x="300" y="519" width="100" height="80" />
       </bpmndi:BPMNShape>
@@ -273,12 +358,6 @@
         <dc:Bounds x="450" y="519" width="100" height="80" />
         <bpmndi:BPMNLabel />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="Gateway_0d6k56m_di" bpmnElement="Gateway_0d6k56m" isMarkerVisible="true">
-        <dc:Bounds x="205" y="534" width="50" height="50" />
-        <bpmndi:BPMNLabel>
-          <dc:Bounds x="583" y="715" width="66" height="14" />
-        </bpmndi:BPMNLabel>
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="Activity_01qxhcd_di" bpmnElement="Activity_1xyimoy">
         <dc:Bounds x="300" y="640" width="100" height="80" />
       </bpmndi:BPMNShape>
@@ -289,10 +368,6 @@
       <bpmndi:BPMNShape id="Gateway_1n68s2y_di" bpmnElement="Gateway_1n68s2y" isMarkerVisible="true">
         <dc:Bounds x="605" y="655" width="50" height="50" />
       </bpmndi:BPMNShape>
-      <bpmndi:BPMNShape id="Activity_0f56s71_di" bpmnElement="Activity_01xpfn8">
-        <dc:Bounds x="760" y="640" width="100" height="80" />
-        <bpmndi:BPMNLabel />
-      </bpmndi:BPMNShape>
       <bpmndi:BPMNShape id="Activity_05quxzc_di" bpmnElement="Activity_1s4qj36">
         <dc:Bounds x="960" y="640" width="100" height="80" />
         <bpmndi:BPMNLabel />
@@ -330,6 +405,19 @@
           <dc:Bounds x="66" y="145" width="25" height="14" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_0frgoo0_di" bpmnElement="Activity_1mpdo61">
+        <dc:Bounds x="771" y="520" width="100" height="80" />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Activity_0f56s71_di" bpmnElement="Activity_01xpfn8">
+        <dc:Bounds x="771" y="640" width="100" height="80" />
+        <bpmndi:BPMNLabel />
+      </bpmndi:BPMNShape>
+      <bpmndi:BPMNShape id="Gateway_0d6k56m_di" bpmnElement="Gateway_0d6k56m" isMarkerVisible="true">
+        <dc:Bounds x="205" y="585" width="50" height="50" />
+        <bpmndi:BPMNLabel>
+          <dc:Bounds x="583" y="715" width="66" height="14" />
+        </bpmndi:BPMNLabel>
+      </bpmndi:BPMNShape>
       <bpmndi:BPMNEdge id="Flow_012bz4o_di" bpmnElement="Flow_012bz4o">
         <di:waypoint x="1415" y="420" />
         <di:waypoint x="336" y="420" />
@@ -349,7 +437,9 @@
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1ih7fcg_di" bpmnElement="Flow_1ih7fcg">
         <di:waypoint x="300" y="559" />
-        <di:waypoint x="255" y="559" />
+        <di:waypoint x="278" y="559" />
+        <di:waypoint x="278" y="610" />
+        <di:waypoint x="255" y="610" />
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1ulnrti_di" bpmnElement="Flow_1ulnrti">
         <di:waypoint x="1542" y="790" />
@@ -368,7 +458,7 @@
         <di:waypoint x="213" y="80" />
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_0egcg2r_di" bpmnElement="Flow_0egcg2r">
-        <di:waypoint x="230" y="534" />
+        <di:waypoint x="230" y="585" />
         <di:waypoint x="230" y="460" />
         <di:waypoint x="336" y="460" />
         <di:waypoint x="336" y="145" />
@@ -385,7 +475,7 @@
         <di:waypoint x="1440" y="520" />
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1kmeg3z_di" bpmnElement="Flow_1kmeg3z">
-        <di:waypoint x="760" y="560" />
+        <di:waypoint x="771" y="560" />
         <di:waypoint x="695" y="560" />
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_03lggaa_di" bpmnElement="Flow_03lggaa">
@@ -409,7 +499,7 @@
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_0qwjl5t_di" bpmnElement="Flow_0qwjl5t">
         <di:waypoint x="960" y="560" />
-        <di:waypoint x="860" y="560" />
+        <di:waypoint x="871" y="560" />
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1seh4th_di" bpmnElement="Flow_1seh4th">
         <di:waypoint x="1060" y="120" />
@@ -437,11 +527,11 @@
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1ka8i2w_di" bpmnElement="Flow_1ka8i2w">
         <di:waypoint x="740" y="145" />
-        <di:waypoint x="740" y="220" />
-        <di:waypoint x="336" y="220" />
+        <di:waypoint x="740" y="270" />
+        <di:waypoint x="336" y="270" />
         <di:waypoint x="336" y="145" />
         <bpmndi:BPMNLabel>
-          <dc:Bounds x="526" y="202" width="25" height="14" />
+          <dc:Bounds x="515" y="256" width="69" height="27" />
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1sdg85j_di" bpmnElement="Flow_1sdg85j">
@@ -468,12 +558,12 @@
         </bpmndi:BPMNLabel>
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1tv2twy_di" bpmnElement="Flow_1tv2twy">
-        <di:waypoint x="230" y="584" />
+        <di:waypoint x="230" y="635" />
         <di:waypoint x="230" y="680" />
         <di:waypoint x="300" y="680" />
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_15p4q8u_di" bpmnElement="Flow_15p4q8u">
-        <di:waypoint x="860" y="680" />
+        <di:waypoint x="871" y="680" />
         <di:waypoint x="960" y="680" />
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_12q9k50_di" bpmnElement="Flow_12q9k50">
@@ -495,7 +585,7 @@
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_07qo5ug_di" bpmnElement="Flow_07qo5ug">
         <di:waypoint x="655" y="680" />
-        <di:waypoint x="760" y="680" />
+        <di:waypoint x="771" y="680" />
       </bpmndi:BPMNEdge>
       <bpmndi:BPMNEdge id="Flow_1vrnszt_di" bpmnElement="Flow_1vrnszt">
         <di:waypoint x="400" y="680" />