diff --git a/compose/service/module.go b/compose/service/module.go
index 0c996e48c..c0b479182 100644
--- a/compose/service/module.go
+++ b/compose/service/module.go
@@ -249,6 +249,13 @@ func (svc module) Create(ctx context.Context, new *types.Module) (*types.Module,
 				f.CreatedAt = *now()
 				f.UpdatedAt = nil
 				f.DeletedAt = nil
+
+				// Assure validatorID
+				for i, v := range f.Expressions.Validators {
+					v.ValidatorID = uint64(i) + 1
+					f.Expressions.Validators[i] = v
+				}
+
 				return nil
 			})
 		}
@@ -461,6 +468,16 @@ func (svc module) handleUpdate(ctx context.Context, upd *types.Module) moduleUpd
 			return moduleUnchanged, ModuleErrNotAllowedToUpdate()
 		}
 
+		// Get max validatorID for later use
+		vvID := make([]uint64, len(res.Fields))
+		for i, f := range res.Fields {
+			for _, v := range f.Expressions.Validators {
+				if vvID[i] < v.ValidatorID {
+					vvID[i] = v.ValidatorID
+				}
+			}
+		}
+
 		if res.Name != upd.Name {
 			changes |= moduleChanged
 			res.Name = upd.Name
@@ -495,6 +512,19 @@ func (svc module) handleUpdate(ctx context.Context, upd *types.Module) moduleUpd
 			res.Fields = upd.Fields
 		}
 
+		// Assure validatorIDs
+		for i, f := range res.Fields {
+			for j, v := range f.Expressions.Validators {
+				if v.ValidatorID == 0 {
+					vvID[i] += 1
+					v.ValidatorID = vvID[i]
+					f.Expressions.Validators[j] = v
+
+					changes |= moduleFieldsChanged
+				}
+			}
+		}
+
 		if upd.Labels != nil {
 			if label.Changed(res.Labels, upd.Labels) {
 				changes |= moduleLabelsChanged
diff --git a/compose/service/page.go b/compose/service/page.go
index 1c4ae7788..316b59bf1 100644
--- a/compose/service/page.go
+++ b/compose/service/page.go
@@ -289,6 +289,11 @@ func (svc page) Create(ctx context.Context, new *types.Page) (*types.Page, error
 		new.UpdatedAt = nil
 		new.DeletedAt = nil
 
+		// Assure pageblock IDs
+		for i, b := range new.Blocks {
+			b.BlockID = uint64(i) + 1
+		}
+
 		if err = store.CreateComposePage(ctx, s, new); err != nil {
 			return err
 		}
@@ -346,6 +351,14 @@ func (svc page) updater(ctx context.Context, namespaceID, pageID uint64, action
 			return err
 		}
 
+		// Get max blockID for later use
+		blockID := uint64(0)
+		for _, b := range p.Blocks {
+			if b.BlockID > blockID {
+				blockID = b.BlockID
+			}
+		}
+
 		old = p.Clone()
 
 		aProps.setNamespace(ns)
@@ -468,6 +481,14 @@ func (svc page) handleUpdate(ctx context.Context, upd *types.Page) pageUpdateHan
 			return pageUnchanged, PageErrNotAllowedToUpdate()
 		}
 
+		// Get max blockID for later use
+		blockID := uint64(0)
+		for _, b := range res.Blocks {
+			if b.BlockID > blockID {
+				blockID = b.BlockID
+			}
+		}
+
 		if res.ID != upd.ID {
 			res.ID = upd.ID
 			changes |= pageChanged
@@ -483,6 +504,17 @@ func (svc page) handleUpdate(ctx context.Context, upd *types.Page) pageUpdateHan
 			changes |= pageChanged
 		}
 
+		// Assure blockIDs
+		for i, b := range res.Blocks {
+			if b.BlockID == 0 {
+				blockID++
+				b.BlockID = blockID
+				res.Blocks[i] = b
+
+				changes |= pageChanged
+			}
+		}
+
 		if res.Title != upd.Title {
 			res.Title = upd.Title
 			changes |= pageChanged
diff --git a/pkg/envoy/store/compose_module_marshal.go b/pkg/envoy/store/compose_module_marshal.go
index 2d7277b53..e7d297180 100644
--- a/pkg/envoy/store/compose_module_marshal.go
+++ b/pkg/envoy/store/compose_module_marshal.go
@@ -159,6 +159,17 @@ func (n *composeModule) Encode(ctx context.Context, pl *payload) (err error) {
 	} else {
 		originalFields = make(types.ModuleFieldSet, 0)
 	}
+
+	// Get max validatorID for later use
+	vvID := make([]uint64, len(res.Fields))
+	for i, f := range res.Fields {
+		for _, v := range f.Expressions.Validators {
+			if vvID[i] < v.ValidatorID {
+				vvID[i] = v.ValidatorID
+			}
+		}
+	}
+
 	for i, f := range res.Fields {
 		of := originalFields.FindByName(f.Name)
 		if of != nil {
@@ -171,6 +182,16 @@ func (n *composeModule) Encode(ctx context.Context, pl *payload) (err error) {
 		f.DeletedAt = nil
 		f.CreatedAt = *now()
 
+		// Assure validatorIDs
+		for j, v := range f.Expressions.Validators {
+			if v.ValidatorID == 0 {
+				vvID[i] += 1
+				v.ValidatorID = vvID[i]
+
+				f.Expressions.Validators[j] = v
+			}
+		}
+
 		if f.Options != nil && f.Kind == "Record" {
 			refMod := f.Options.String("module")
 			if refMod == "" {
diff --git a/pkg/envoy/store/compose_page_marshal.go b/pkg/envoy/store/compose_page_marshal.go
index 1c932e62a..acbb51a4d 100644
--- a/pkg/envoy/store/compose_page_marshal.go
+++ b/pkg/envoy/store/compose_page_marshal.go
@@ -216,7 +216,23 @@ func (n *composePage) Encode(ctx context.Context, pl *payload) (err error) {
 		return ""
 	}
 
+	// Get max blockID for later use
+	blockID := uint64(0)
 	for _, b := range res.Blocks {
+		if b.BlockID > blockID {
+			blockID = b.BlockID
+		}
+	}
+
+	for i, b := range res.Blocks {
+
+		// Assure blockIDs
+		if b.BlockID == 0 {
+			blockID++
+			b.BlockID = blockID
+			res.Blocks[i] = b
+		}
+
 		switch b.Kind {
 		case "RecordList":
 			id := ss(b.Options, "module", "moduleID")
diff --git a/pkg/envoy/yaml/compose_page_marshal.go b/pkg/envoy/yaml/compose_page_marshal.go
index d766d9676..a43868fc5 100644
--- a/pkg/envoy/yaml/compose_page_marshal.go
+++ b/pkg/envoy/yaml/compose_page_marshal.go
@@ -237,6 +237,7 @@ func (c *composePageBlock) MarshalYAML() (interface{}, error) {
 	}
 
 	return makeMap(
+		"blockID", c.res.BlockID,
 		"title", c.res.Title,
 		"description", c.res.Description,
 		"options", c.res.Options,