diff --git a/cmd/neofs-adm/internal/modules/morph/subnet.go b/cmd/neofs-adm/internal/modules/morph/subnet.go
index 9430f39b77..4b036744a7 100644
--- a/cmd/neofs-adm/internal/modules/morph/subnet.go
+++ b/cmd/neofs-adm/internal/modules/morph/subnet.go
@@ -140,6 +140,9 @@ func initSubnetClientCheckNotary(c *morphsubnet.Client, key *keys.PrivateKey, ch
 		return err
 	}
 
+	// Error means group was not set in NNS, continue with Global scope in this case.
+	_ = cMorph.SetGroupSignerScope()
+
 	// read contract address
 	contractAddr, err := cMorph.NNSContractAddress(client.NNSSubnetworkContractName)
 	if err != nil {
diff --git a/cmd/neofs-node/morph.go b/cmd/neofs-node/morph.go
index 810e150170..cc1c83a4d5 100644
--- a/cmd/neofs-node/morph.go
+++ b/cmd/neofs-node/morph.go
@@ -51,6 +51,9 @@ func initMorphComponents(c *cfg) {
 			client.WithMaxConnectionPerHost(morphconfig.MaxConnPerHost(c.appCfg)),
 		)
 		if err == nil {
+			if err := cli.SetGroupSignerScope(); err != nil {
+				c.log.Info("failed to set group signer scope, continue with Global", zap.Error(err))
+			}
 			handler(cli)
 
 			return
diff --git a/pkg/innerring/innerring.go b/pkg/innerring/innerring.go
index 85fd92691d..24792458f7 100644
--- a/pkg/innerring/innerring.go
+++ b/pkg/innerring/innerring.go
@@ -364,6 +364,9 @@ func New(ctx context.Context, log *zap.Logger, cfg *viper.Viper) (*Server, error
 	if err != nil {
 		return nil, err
 	}
+	if err := server.morphClient.SetGroupSignerScope(); err != nil {
+		morphChain.log.Info("failed to set group signer scope, continue with Global", zap.Error(err))
+	}
 
 	server.withoutMainNet = cfg.GetBool("without_mainnet")
 
diff --git a/pkg/morph/client/nns.go b/pkg/morph/client/nns.go
index 9a6017ce28..562f770021 100644
--- a/pkg/morph/client/nns.go
+++ b/pkg/morph/client/nns.go
@@ -6,6 +6,7 @@ import (
 	"strconv"
 
 	nns "github.com/nspcc-dev/neo-go/examples/nft-nd-nns"
+	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/rpc/client"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
@@ -175,8 +176,27 @@ func exists(c *client.Client, nnsHash util.Uint160, domain string) (bool, error)
 	return !available, nil
 }
 
-// ContractGroupKey returns public key designating NeoFS contract group.
-func (c *Client) ContractGroupKey() (*keys.PublicKey, error) {
+// SetGroupSignerScope makes the default signer scope include all NeoFS contracts.
+// Should be called for side-chain client only.
+func (c *Client) SetGroupSignerScope() error {
+	if c.multiClient != nil {
+		return c.multiClient.iterateClients(func(c *Client) error {
+			return wrapNeoFSError(c.SetGroupSignerScope())
+		})
+	}
+
+	pub, err := c.contractGroupKey()
+	if err != nil {
+		return err
+	}
+
+	c.signer.Scopes = transaction.CustomGroups
+	c.signer.AllowedGroups = []*keys.PublicKey{pub}
+	return nil
+}
+
+// contractGroupKey returns public key designating NeoFS contract group.
+func (c *Client) contractGroupKey() (*keys.PublicKey, error) {
 	if c.groupKey != nil {
 		return c.groupKey, nil
 	}