diff --git a/services/static-webserver/client/source/class/osparc/dashboard/ResourceDetails.js b/services/static-webserver/client/source/class/osparc/dashboard/ResourceDetails.js
index 7db4d4468918..d617ea8ddd63 100644
--- a/services/static-webserver/client/source/class/osparc/dashboard/ResourceDetails.js
+++ b/services/static-webserver/client/source/class/osparc/dashboard/ResourceDetails.js
@@ -960,14 +960,14 @@ qx.Class.define("osparc.dashboard.ResourceDetails", {
         return;
       }
 
-      if (!osparc.study.Utils.isPotentialFunction(this.__resourceData["workbench"])) {
-        return;
-      }
+      const isPotentialFunction = osparc.study.CreateFunction.isPotentialFunction(this.__resourceData["workbench"]);
 
       const id = "CreateFunction";
       const iconSrc = "@MaterialIcons/functions/24";
       const title = this.tr("Create Function");
       const page = new osparc.dashboard.resources.pages.BasePage(title, iconSrc, id);
+      page.setEnabled(isPotentialFunction);
+      osparc.utils.Utils.toolTipTextOnDisabledWidget(page.getChildControl("button"), osparc.study.CreateFunction.CREATE_FUNCTION_TEXT);
       const createFunction = new osparc.study.CreateFunction(this.__resourceData);
       const createFunctionButton = createFunction.getCreateFunctionButton();
       osparc.utils.Utils.setIdToWidget(createFunctionButton, "create_function_page_btn");
diff --git a/services/static-webserver/client/source/class/osparc/data/Resources.js b/services/static-webserver/client/source/class/osparc/data/Resources.js
index b521517c0fa4..60e1415d3f7d 100644
--- a/services/static-webserver/client/source/class/osparc/data/Resources.js
+++ b/services/static-webserver/client/source/class/osparc/data/Resources.js
@@ -102,7 +102,7 @@ qx.Class.define("osparc.data.Resources", {
         endpoints: {
           get: {
             method: "GET",
-            url: "/{productName}/app-summary.json",
+            url: `/{productName}/app-summary.json?no-cache=${new Date().getTime()}`,
             isJsonFile: true
           }
         }
diff --git a/services/static-webserver/client/source/class/osparc/form/renderer/PropForm.js b/services/static-webserver/client/source/class/osparc/form/renderer/PropForm.js
index fb504f8c25fb..452f9efa4689 100644
--- a/services/static-webserver/client/source/class/osparc/form/renderer/PropForm.js
+++ b/services/static-webserver/client/source/class/osparc/form/renderer/PropForm.js
@@ -939,11 +939,9 @@ qx.Class.define("osparc.form.renderer.PropForm", {
           converter: label => label + ": " + fromPortLabel
         });
 
-        // Hack: Show tooltip if element is disabled
         const addToolTip = () => {
-          ctrlLink.getContentElement().removeAttribute("title");
           const toolTipText = fromNode.getLabel() + ":\n" + fromPortLabel;
-          ctrlLink.getContentElement().setAttribute("title", toolTipText);
+          osparc.utils.Utils.toolTipTextOnDisabledWidget(ctrlLink, toolTipText);
         };
         fromNode.addListener("changeLabel", () => addToolTip());
         addToolTip();
diff --git a/services/static-webserver/client/source/class/osparc/study/CreateFunction.js b/services/static-webserver/client/source/class/osparc/study/CreateFunction.js
index 0b7c9a348ef3..9b71ea943fd9 100644
--- a/services/static-webserver/client/source/class/osparc/study/CreateFunction.js
+++ b/services/static-webserver/client/source/class/osparc/study/CreateFunction.js
@@ -32,6 +32,37 @@ qx.Class.define("osparc.study.CreateFunction", {
     this.__buildLayout();
   },
 
+  statics: {
+    CREATE_FUNCTION_TEXT: qx.locale.Manager.tr(`
+      In order to Create a Function, the pipeline needs:
+      - at least one parameter and one probe (numbers)
+      - at least one computational app
+      - no dynamic apps
+    `),
+
+    isPotentialFunction: function(workbench) {
+      // const filePickers = osparc.study.Utils.extractFilePickers(workbench);
+      // const parameters = osparc.study.Utils.extractParameters(workbench);
+      // const probes = osparc.study.Utils.extractProbes(workbench);
+      // return (filePickers.length + parameters.length) && probes.length;
+
+      const parameters = osparc.study.Utils.extractFunctionableParameters(workbench);
+      const probes = osparc.study.Utils.extractFunctionableProbes(workbench);
+      const computationals = osparc.study.Utils.extractComputationalServices(workbench);
+      const dynamics = osparc.study.Utils.extractDynamicServices(workbench);
+
+      return Boolean(
+        (parameters.length && probes.length) &&
+        computationals.length > 0 &&
+        dynamics.length === 0
+      );
+    },
+
+    checkExposedInputsOutputs: function(exposedInputs, exposedOutputs) {
+      return Boolean(Object.values(exposedInputs).some(exposedInputValue => exposedInputValue) && Object.values(exposedOutputs).some(exposedOutputValue => exposedOutputValue));
+    },
+  },
+
   members: {
     __studyData: null,
     __form: null,
@@ -238,6 +269,12 @@ qx.Class.define("osparc.study.CreateFunction", {
     },
 
     __createFunction: function(defaultInputs, exposedInputs, exposedOutputs) {
+      if (!osparc.study.CreateFunction.checkExposedInputsOutputs(exposedInputs, exposedOutputs)) {
+        const msg = this.tr("Expose at least one input and one output");
+        osparc.FlashMessenger.logAs(msg, "ERROR");
+        return;
+      }
+
       this.__createFunctionBtn.setFetching(true);
 
       // first publish it as a hidden template
diff --git a/services/static-webserver/client/source/class/osparc/study/Utils.js b/services/static-webserver/client/source/class/osparc/study/Utils.js
index e61810cf0d40..57bff3573829 100644
--- a/services/static-webserver/client/source/class/osparc/study/Utils.js
+++ b/services/static-webserver/client/source/class/osparc/study/Utils.js
@@ -270,30 +270,6 @@ qx.Class.define("osparc.study.Utils", {
       return parameters;
     },
 
-    isPotentialFunction: function(workbench) {
-      // in order to create a function, the pipeline needs:
-      // - at least one parameter or one probe
-      //   - for now, only float types are allowed
-      // - at least one computational service
-      // - no dynamic services
-
-      // const filePickers = osparc.study.Utils.extractFilePickers(workbench);
-      // const parameters = osparc.study.Utils.extractParameters(workbench);
-      // const probes = osparc.study.Utils.extractProbes(workbench);
-      // return (filePickers.length + parameters.length) && probes.length;
-
-      const parameters = osparc.study.Utils.extractFunctionableParameters(workbench);
-      const probes = osparc.study.Utils.extractFunctionableProbes(workbench);
-      const computationals = osparc.study.Utils.extractComputationalServices(workbench);
-      const dynamics = osparc.study.Utils.extractDynamicServices(workbench);
-
-      return (
-        (parameters.length || probes.length) &&
-        computationals.length > 0 &&
-        dynamics.length === 0
-      );
-    },
-
     getCantReadServices: function(studyServices = []) {
       return studyServices.filter(studyService => studyService["myAccessRights"]["execute"] === false);
     },
diff --git a/services/static-webserver/client/source/class/osparc/utils/Utils.js b/services/static-webserver/client/source/class/osparc/utils/Utils.js
index 70a3bd1f87bc..c7bbdaf277c6 100644
--- a/services/static-webserver/client/source/class/osparc/utils/Utils.js
+++ b/services/static-webserver/client/source/class/osparc/utils/Utils.js
@@ -91,6 +91,14 @@ qx.Class.define("osparc.utils.Utils", {
 
     FLOATING_Z_INDEX: 1000001 + 1,
 
+    toolTipTextOnDisabledWidget: function(widget, toolTipText) {
+      if (widget && widget.getContentElement()) {
+        const el = widget.getContentElement();
+        el.removeAttribute("title");
+        el.setAttribute("title", toolTipText);
+      }
+    },
+
     errorsToForm: function(form, errors) {
       const items = form.getItems();
       // reset validity