diff --git a/pkg/alertmanager/amcfg.go b/pkg/alertmanager/amcfg.go
index 911d6ea59..f3802f1f2 100644
--- a/pkg/alertmanager/amcfg.go
+++ b/pkg/alertmanager/amcfg.go
@@ -1920,10 +1920,6 @@ func (cb *ConfigBuilder) convertGlobalJiraConfig(out *globalConfig, in *monitori
 		return nil
 	}
 
-	if cb.amVersion.LT(semver.MustParse("0.28.0")) {
-		return errors.New("jira integration requires Alertmanager >= 0.28.0")
-	}
-
 	if in.APIURL != nil {
 		u, err := url.Parse(string(*in.APIURL))
 		if err != nil {
@@ -3175,6 +3171,10 @@ func (cb *ConfigBuilder) checkAlertmanagerGlobalConfigResource(
 		return err
 	}
 
+	if err := cb.checkGlobalJiraConfig(gc.JiraConfig); err != nil {
+		return err
+	}
+
 	if err := cb.checkGlobalWebexConfig(gc.WebexConfig); err != nil {
 		return err
 	}
@@ -3198,6 +3198,18 @@ func (cb *ConfigBuilder) checkGlobalTelegramConfig(tc *monitoringv1.GlobalTelegr
 	return nil
 }
 
+func (cb *ConfigBuilder) checkGlobalJiraConfig(jc *monitoringv1.GlobalJiraConfig) error {
+	if jc == nil {
+		return nil
+	}
+
+	if cb.amVersion.LT(semver.MustParse("0.28.0")) {
+		return fmt.Errorf(`'jira' integration requires Alertmanager >= 0.28.0 - current %s`, cb.amVersion)
+	}
+
+	return nil
+}
+
 func (cb *ConfigBuilder) checkGlobalWebexConfig(wc *monitoringv1.GlobalWebexConfig) error {
 	if wc == nil {
 		return nil
diff --git a/pkg/alertmanager/validation/v1/validation.go b/pkg/alertmanager/validation/v1/validation.go
index ae4b6a42d..a7e77bcfe 100644
--- a/pkg/alertmanager/validation/v1/validation.go
+++ b/pkg/alertmanager/validation/v1/validation.go
@@ -34,6 +34,10 @@ func ValidateAlertmanagerGlobalConfig(gc *monitoringv1.AlertmanagerGlobalConfig)
 		return fmt.Errorf("telegram: %w", err)
 	}
 
+	if err := validateGlobalJiraConfig(gc.JiraConfig); err != nil {
+		return fmt.Errorf("jira: %w", err)
+	}
+
 	if err := validateGlobalWebexConfig(gc.WebexConfig); err != nil {
 		return fmt.Errorf("webex: %w", err)
 	}
@@ -57,6 +61,18 @@ func validatingTelegramConfig(tc *monitoringv1.GlobalTelegramConfig) error {
 	return nil
 }
 
+func validateGlobalJiraConfig(jc *monitoringv1.GlobalJiraConfig) error {
+	if jc == nil {
+		return nil
+	}
+
+	if err := validation.ValidateURLPtr((*string)(jc.APIURL)); err != nil {
+		return fmt.Errorf("invalid apiURL: %w", err)
+	}
+
+	return nil
+}
+
 func validateGlobalWebexConfig(wc *monitoringv1.GlobalWebexConfig) error {
 	if wc == nil {
 		return nil