diff --git a/modules/actions/workflows.go b/modules/actions/workflows.go
index b0d53b83c..c103aa192 100644
--- a/modules/actions/workflows.go
+++ b/modules/actions/workflows.go
@@ -149,6 +149,41 @@ func DetectWorkflows(
 	return workflows, schedules, nil
 }
 
+func DetectScheduledWorkflows(gitRepo *git.Repository, commit *git.Commit) ([]*DetectedWorkflow, error) {
+	entries, err := ListWorkflows(commit)
+	if err != nil {
+		return nil, err
+	}
+
+	wfs := make([]*DetectedWorkflow, 0, len(entries))
+	for _, entry := range entries {
+		content, err := GetContentFromEntry(entry)
+		if err != nil {
+			return nil, err
+		}
+
+		// one workflow may have multiple events
+		events, err := GetEventsFromContent(content)
+		if err != nil {
+			log.Warn("ignore invalid workflow %q: %v", entry.Name(), err)
+			continue
+		}
+		for _, evt := range events {
+			if evt.IsSchedule() {
+				log.Trace("detect scheduled workflow: %q", entry.Name())
+				dwf := &DetectedWorkflow{
+					EntryName:    entry.Name(),
+					TriggerEvent: evt,
+					Content:      content,
+				}
+				wfs = append(wfs, dwf)
+			}
+		}
+	}
+
+	return wfs, nil
+}
+
 func detectMatched(gitRepo *git.Repository, commit *git.Commit, triggedEvent webhook_module.HookEventType, payload api.Payloader, evt *jobparser.Event) bool {
 	if !canGithubEventMatch(evt.Name, triggedEvent) {
 		return false
diff --git a/routers/api/v1/repo/wiki.go b/routers/api/v1/repo/wiki.go
index 347b7539b..f18ea087c 100644
--- a/routers/api/v1/repo/wiki.go
+++ b/routers/api/v1/repo/wiki.go
@@ -203,7 +203,7 @@ func getWikiPage(ctx *context.APIContext, wikiName wiki_service.WebPath) *api.Wi
 	}
 
 	return &api.WikiPage{
-		WikiPageMetaData: convert.ToWikiPageMetaData(wikiName, lastCommit, ctx.Repo.Repository),
+		WikiPageMetaData: wiki_service.ToWikiPageMetaData(wikiName, lastCommit, ctx.Repo.Repository),
 		ContentBase64:    content,
 		CommitCount:      commitsCount,
 		Sidebar:          sidebarContent,
@@ -333,7 +333,7 @@ func ListWikiPages(ctx *context.APIContext) {
 			ctx.Error(http.StatusInternalServerError, "WikiFilenameToName", err)
 			return
 		}
-		pages = append(pages, convert.ToWikiPageMetaData(wikiName, c, ctx.Repo.Repository))
+		pages = append(pages, wiki_service.ToWikiPageMetaData(wikiName, c, ctx.Repo.Repository))
 	}
 
 	ctx.SetTotalCountHeader(int64(len(entries)))
diff --git a/services/actions/notifier_helper.go b/services/actions/notifier_helper.go
index 81ae97d55..33f8b00fd 100644
--- a/services/actions/notifier_helper.go
+++ b/services/actions/notifier_helper.go
@@ -530,3 +530,35 @@ func handleSchedules(
 
 	return actions_model.CreateScheduleTask(ctx, crons)
 }
+
+// DetectAndHandleSchedules detects the schedule workflows on the default branch and create schedule tasks
+func DetectAndHandleSchedules(ctx context.Context, repo *repo_model.Repository) error {
+	gitRepo, err := gitrepo.OpenRepository(context.Background(), repo)
+	if err != nil {
+		return fmt.Errorf("git.OpenRepository: %w", err)
+	}
+	defer gitRepo.Close()
+
+	// Only detect schedule workflows on the default branch
+	commit, err := gitRepo.GetCommit(repo.DefaultBranch)
+	if err != nil {
+		return fmt.Errorf("gitRepo.GetCommit: %w", err)
+	}
+	scheduleWorkflows, err := actions_module.DetectScheduledWorkflows(gitRepo, commit)
+	if err != nil {
+		return fmt.Errorf("detect schedule workflows: %w", err)
+	}
+	if len(scheduleWorkflows) == 0 {
+		return nil
+	}
+
+	// We need a notifyInput to call handleSchedules
+	// Here we use the commit author as the Doer of the notifyInput
+	commitUser, err := user_model.GetUserByEmail(ctx, commit.Author.Email)
+	if err != nil {
+		return fmt.Errorf("get user by email: %w", err)
+	}
+	notifyInput := newNotifyInput(repo, commitUser, webhook_module.HookEventSchedule)
+
+	return handleSchedules(ctx, scheduleWorkflows, commit, notifyInput, repo.DefaultBranch)
+}
diff --git a/services/actions/schedule_tasks.go b/services/actions/schedule_tasks.go
index e7aa4a39a..79dd84e0c 100644
--- a/services/actions/schedule_tasks.go
+++ b/services/actions/schedule_tasks.go
@@ -10,6 +10,7 @@ import (
 
 	actions_model "code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/timeutil"
@@ -65,8 +66,15 @@ func startTasks(ctx context.Context) error {
 				}
 			}
 
-			cfg := row.Repo.MustGetUnit(ctx, unit.TypeActions).ActionsConfig()
-			if cfg.IsWorkflowDisabled(row.Schedule.WorkflowID) {
+			cfg, err := row.Repo.GetUnit(ctx, unit.TypeActions)
+			if err != nil {
+				if repo_model.IsErrUnitTypeNotExist(err) {
+					// Skip the actions unit of this repo is disabled.
+					continue
+				}
+				return fmt.Errorf("GetUnit: %w", err)
+			}
+			if cfg.ActionsConfig().IsWorkflowDisabled(row.Schedule.WorkflowID) {
 				continue
 			}
 
diff --git a/services/convert/wiki.go b/services/convert/wiki.go
index 1f0484348..767bfdb88 100644
--- a/services/convert/wiki.go
+++ b/services/convert/wiki.go
@@ -6,11 +6,8 @@ package convert
 import (
 	"time"
 
-	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/modules/git"
 	api "code.gitea.io/gitea/modules/structs"
-	"code.gitea.io/gitea/modules/util"
-	wiki_service "code.gitea.io/gitea/services/wiki"
 )
 
 // ToWikiCommit convert a git commit into a WikiCommit
@@ -46,15 +43,3 @@ func ToWikiCommitList(commits []*git.Commit, total int64) *api.WikiCommitList {
 		Count:       total,
 	}
 }
-
-// ToWikiPageMetaData converts meta information to a WikiPageMetaData
-func ToWikiPageMetaData(wikiName wiki_service.WebPath, lastCommit *git.Commit, repo *repo_model.Repository) *api.WikiPageMetaData {
-	subURL := string(wikiName)
-	_, title := wiki_service.WebPathToUserTitle(wikiName)
-	return &api.WikiPageMetaData{
-		Title:      title,
-		HTMLURL:    util.URLJoin(repo.HTMLURL(), "wiki", subURL),
-		SubURL:     subURL,
-		LastCommit: ToWikiCommit(lastCommit),
-	}
-}
diff --git a/services/repository/setting.go b/services/repository/setting.go
index 6496ac401..b82f24271 100644
--- a/services/repository/setting.go
+++ b/services/repository/setting.go
@@ -12,6 +12,7 @@ import (
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unit"
 	"code.gitea.io/gitea/modules/log"
+	actions_service "code.gitea.io/gitea/services/actions"
 )
 
 // UpdateRepositoryUnits updates a repository's units
@@ -33,6 +34,15 @@ func UpdateRepositoryUnits(ctx context.Context, repo *repo_model.Repository, uni
 		}
 	}
 
+	for _, u := range units {
+		if u.Type == unit.TypeActions {
+			if err := actions_service.DetectAndHandleSchedules(ctx, repo); err != nil {
+				log.Error("DetectAndHandleSchedules: %v", err)
+			}
+			break
+		}
+	}
+
 	if _, err = db.GetEngine(ctx).Where("repo_id = ?", repo.ID).In("type", deleteUnitTypes).Delete(new(repo_model.RepoUnit)); err != nil {
 		return err
 	}
diff --git a/services/wiki/wiki_path.go b/services/wiki/wiki_path.go
index e51d6c630..74c706404 100644
--- a/services/wiki/wiki_path.go
+++ b/services/wiki/wiki_path.go
@@ -9,7 +9,10 @@ import (
 	"strings"
 
 	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/git"
+	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/services/convert"
 )
 
 // To define the wiki related concepts:
@@ -155,3 +158,15 @@ func UserTitleToWebPath(base, title string) WebPath {
 	}
 	return WebPath(title)
 }
+
+// ToWikiPageMetaData converts meta information to a WikiPageMetaData
+func ToWikiPageMetaData(wikiName WebPath, lastCommit *git.Commit, repo *repo_model.Repository) *api.WikiPageMetaData {
+	subURL := string(wikiName)
+	_, title := WebPathToUserTitle(wikiName)
+	return &api.WikiPageMetaData{
+		Title:      title,
+		HTMLURL:    util.URLJoin(repo.HTMLURL(), "wiki", subURL),
+		SubURL:     subURL,
+		LastCommit: convert.ToWikiCommit(lastCommit),
+	}
+}