diff --git a/protocol/x/clob/types/constants.go b/protocol/x/clob/types/constants.go
index c0eaf75392..069e7646e7 100644
--- a/protocol/x/clob/types/constants.go
+++ b/protocol/x/clob/types/constants.go
@@ -8,6 +8,10 @@ import (
 // `MsgPlaceOrder` or `MsgCancelOrder` message will be considered valid by the validator.
 const ShortBlockWindow uint32 = 20
 
+// MaxMsgBatchCancelBatchSize represents the maximum number of cancels that a MsgBatchCancel
+// can have in one Msg.
+const MaxMsgBatchCancelBatchSize uint32 = 100
+
 // StatefulOrderTimeWindow represents the maximum amount of time in seconds past the current block time that a
 // long-term/conditional `MsgPlaceOrder` message will be considered valid by the validator.
 const StatefulOrderTimeWindow time.Duration = 95 * 24 * time.Hour // 95 days.
diff --git a/protocol/x/clob/types/errors.go b/protocol/x/clob/types/errors.go
index 5f2ec04f12..779d95fbf6 100644
--- a/protocol/x/clob/types/errors.go
+++ b/protocol/x/clob/types/errors.go
@@ -206,6 +206,11 @@ var (
 		44,
 		"invalid time in force",
 	)
+	ErrInvalidBatchCancel = errorsmod.Register(
+		ModuleName,
+		45,
+		"Invalid Batch Cancel",
+	)
 
 	// Liquidations errors.
 	ErrInvalidLiquidationsConfig = errorsmod.Register(
diff --git a/protocol/x/clob/types/message_batch_cancel.go b/protocol/x/clob/types/message_batch_cancel.go
index 08d0295704..39d266ef23 100644
--- a/protocol/x/clob/types/message_batch_cancel.go
+++ b/protocol/x/clob/types/message_batch_cancel.go
@@ -9,7 +9,7 @@ import (
 
 var _ sdk.Msg = &MsgBatchCancel{}
 
-// NewMsgCancelOrderShortTerm constructs a MsgBatchCancel from an `OrderId` and a `GoodTilBlock`.
+// NewMsgBatchCancel constructs a MsgBatchCancel.
 func NewMsgBatchCancel(subaccountId types.SubaccountId, cancelBatch []OrderBatch, goodTilBlock uint32) *MsgBatchCancel {
 	return &MsgBatchCancel{
 		SubaccountId:     subaccountId,
@@ -18,7 +18,7 @@ func NewMsgBatchCancel(subaccountId types.SubaccountId, cancelBatch []OrderBatch
 	}
 }
 
-// ValidateBasic performs stateless validation for
+// ValidateBasic performs stateless validation for the `MsgBatchCancel` msg.
 func (msg *MsgBatchCancel) ValidateBasic() (err error) {
 	subaccountId := msg.GetSubaccountId()
 	if err := subaccountId.Validate(); err != nil {