diff --git a/config.go b/config.go
index 6ac26a3..150fa1d 100644
--- a/config.go
+++ b/config.go
@@ -1,6 +1,5 @@
 package main
 
 type SmonConfiguration struct {
-	LogFile        string
-	NodataInterval int `json:"nodata_interval"` // in seconds
+	LogFile string
 }
diff --git a/datapoint.go b/datapoint.go
index 02acec4..ff284a2 100644
--- a/datapoint.go
+++ b/datapoint.go
@@ -73,7 +73,7 @@ func (dp Datapoint) Update() (err error) { // {{{
 
 	if dp.ID == 0 {
 		_, err = service.Db.Conn.Exec(
-			`INSERT INTO datapoint("group", name, datatype, nodata_problem_seconds) VALUES($1, $2, $3, $4)`,
+			`INSERT INTO datapoint("group", name, datatype) VALUES($1, $2, $3, $4)`,
 			dp.Group,
 			name,
 			dp.Datatype,
@@ -283,37 +283,6 @@ func DatapointRetrieve(id int, name string) (dp Datapoint, err error) { // {{{
 	return
 } // }}}
 func DatapointDelete(id int) (err error) { // {{{
-	var dpName string
-	row := service.Db.Conn.QueryRow(`SELECT name FROM public.datapoint WHERE id = $1`, id)
-	err = row.Scan(&dpName)
-	if err != nil {
-		err = werr.Wrap(err).WithData(id)
-		return
-	}
-
-	var rows *sql.Rows
-	rows, err = service.Db.Conn.Query(`SELECT name FROM public.trigger WHERE datapoints ? $1`, dpName)
-	if err != nil {
-		err = werr.Wrap(err).WithData(dpName)
-		return
-	}
-	defer rows.Close()
-
-	var triggerNames []string
-	var name string
-	for rows.Next() {
-		err = rows.Scan(&name)
-		if err != nil {
-			err = werr.Wrap(err)
-			return
-		}
-		triggerNames = append(triggerNames, name)
-	}
-
-	if len(triggerNames) > 0 {
-		return werr.New("Datapoint '%s' used in the following triggers: %s", dpName, strings.Join(triggerNames, ", "))
-	}
-
 	_, err = service.Db.Conn.Exec(`DELETE FROM datapoint WHERE id=$1`, id)
 	if err != nil {
 		err = werr.Wrap(err).WithData(id)
diff --git a/main.go b/main.go
index bb1df33..859e59f 100644
--- a/main.go
+++ b/main.go
@@ -21,7 +21,6 @@ import (
 	"net/http"
 	"os"
 	"path"
-	"slices"
 	"sort"
 	"strconv"
 	"time"
@@ -39,7 +38,6 @@ var (
 	parsedTemplates     map[string]*template.Template
 	componentFilenames  []string
 	notificationManager notification.Manager
-	smonConf            SmonConfiguration
 
 	//go:embed sql
 	sqlFS embed.FS
@@ -90,6 +88,7 @@ func main() { // {{{
 		os.Exit(1)
 	}
 
+	smonConf := SmonConfiguration{}
 	j, _ := json.Marshal(service.Config.Application)
 	json.Unmarshal(j, &smonConf)
 	logFile, err = os.OpenFile(smonConf.LogFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0600)
@@ -97,10 +96,6 @@ func main() { // {{{
 		logger.Error("application", "error", err)
 		return
 	}
-	if smonConf.NodataInterval < 10 {
-		logger.Error("application → nodata_interval has to be larger or equal to 10.")
-		return
-	}
 
 	service.SetDatabase(sqlProvider)
 	service.SetStaticFS(staticFS, "static")
@@ -139,7 +134,6 @@ func main() { // {{{
 	service.Register("/triggers", false, false, pageTriggers)
 	service.Register("/trigger/edit/{id}", false, false, pageTriggerEdit)
 	service.Register("/trigger/edit/{id}/{sectionID}", false, false, pageTriggerEdit)
-	service.Register("/trigger/addDatapoint/{id}/{datapointName}", false, false, pageTriggerDatapointAdd)
 	service.Register("/trigger/update/{id}", false, false, pageTriggerUpdate)
 	service.Register("/trigger/run/{id}", false, false, pageTriggerRun)
 
@@ -727,38 +721,6 @@ func pageTriggerEdit(w http.ResponseWriter, r *http.Request, _ *session.T) { //
 
 	page.Render(w)
 } // }}}
-func pageTriggerDatapointAdd(w http.ResponseWriter, r *http.Request, _ *session.T) { // {{{
-	triggerID := r.PathValue("id")
-	dpName := r.PathValue("datapointName")
-
-	id, err := strconv.Atoi(triggerID)
-	if err != nil {
-		httpError(w, werr.Wrap(err).Log())
-		return
-	}
-
-	var trigger Trigger
-	if id > 0 {
-		trigger, err = TriggerRetrieve(id)
-		if err != nil {
-			httpError(w, werr.Wrap(err).Log())
-			return
-		}
-	}
-
-	if !slices.Contains(trigger.Datapoints, dpName) {
-		trigger.Datapoints = append(trigger.Datapoints, dpName)
-	}
-	err = trigger.Update()
-	if err != nil {
-		httpError(w, werr.Wrap(err).Log())
-		return
-	}
-
-	j, _ := json.Marshal(struct{ OK bool }{OK: true})
-	w.Header().Add("Content-Type", "application/json")
-	w.Write(j)
-} // }}}
 func pageTriggerUpdate(w http.ResponseWriter, r *http.Request, _ *session.T) { // {{{
 	idStr := r.PathValue("id")
 	id, err := strconv.Atoi(idStr)
diff --git a/nodata.go b/nodata.go
index ea09de9..a6cba54 100644
--- a/nodata.go
+++ b/nodata.go
@@ -25,7 +25,7 @@ func nodataLoop() {
 	var err error
 
 	// TODO - should be configurable
-	ticker := time.NewTicker(time.Second * time.Duration(smonConf.NodataInterval))
+	ticker := time.NewTicker(time.Second * 5)
 	for {
 		<-ticker.C
 		datapoints, err = nodataDatapoints()
diff --git a/static/js/trigger_edit.mjs b/static/js/trigger_edit.mjs
index ab90143..d190ef1 100644
--- a/static/js/trigger_edit.mjs
+++ b/static/js/trigger_edit.mjs
@@ -66,7 +66,7 @@ export class UI {
 			})
 			.catch(err => alert(err))
 	}//}}}
-	async chooseDatapoint() {//{{{
+	chooseDatapoint() {//{{{
 		const dlg = document.getElementById('dlg-datapoints')
 		const datapoint = document.getElementById('datapoint').value
 		const dp = this.datapoints.find(dp => dp.Name == datapoint)
@@ -77,10 +77,8 @@ export class UI {
 		}
 
 		this.trigger.addDatapoint(dp)
-			.then(() => {
-				dlg.close()
-				this.render()
-			})
+		dlg.close()
+		this.render()
 	}//}}}
 	deleteDatapoint(name) {//{{{
 		if (!confirm(`Delete ${name}?`)) {
@@ -149,15 +147,7 @@ export class Trigger {
 			})
 			.catch(err => alert(err))
 	}//}}}
-	async addDatapoint(dp) {//{{{
-		return fetch(`/trigger/addDatapoint/${this.id}/${dp.Name}`)
-			.then(data => data.json())
-			.then(json => {
-				if (!json.OK) {
-					alert(json.Error)
-					return
-				}
-				this.datapoints[dp.Name] = dp
-			})
+	addDatapoint(dp) {//{{{
+		this.datapoints[dp.Name] = dp
 	}//}}}
 }