# Messages

### MsgSend <a href="#msgsend" id="msgsend"></a>

Send coins from one address to another.

```protobuf
// MsgSend represents a message to send coins from one account to another.
message MsgSend {
  option (cosmos.msg.v1.signer) = "from_address";

  option (gogoproto.equal)           = false;
  option (gogoproto.goproto_getters) = false;

  string   from_address                    = 1 [(cosmos_proto.scalar) = "cosmos.AddressString"];
  string   to_address                      = 2 [(cosmos_proto.scalar) = "cosmos.AddressString"];
  repeated cosmos.base.v1beta1.Coin amount = 3
      [(gogoproto.nullable) = false, (gogoproto.castrepeated) = "github.com/cosmos/cosmos-sdk/types.Coins"];
}
```

The message will fail under the following conditions:

* The coins do not have sending enabled
* The `to` address is restricted

### MsgMultiSend <a href="#msgmultisend" id="msgmultisend"></a>

Send coins from and to a series of different address. If any of the receiving addresses do not correspond to an existing account, a new account is created.

```protobuf
// MsgMultiSend represents an arbitrary multi-in, multi-out send message.
message MsgMultiSend {
  option (cosmos.msg.v1.signer) = "inputs";

  option (gogoproto.equal) = false;

  repeated Input  inputs  = 1 [(gogoproto.nullable) = false];
  repeated Output outputs = 2 [(gogoproto.nullable) = false];
}
```

The message will fail under the following conditions:

* Any of the coins do not have sending enabled
* Any of the `to` addresses are restricted
* Any of the coins are locked
* The inputs and outputs do not correctly correspond to one another

### MsgUpdateParams <a href="#msgupdateparams" id="msgupdateparams"></a>

The `bank` module params can be updated through `MsgUpdateParams`, which can be done using governance proposal. The signer will always be the `gov` module account address.

```protobuf
// MsgUpdateParams is the Msg/UpdateParams request type.
//
// Since: cosmos-sdk 0.47
message MsgUpdateParams {
  option (cosmos.msg.v1.signer) = "authority";

  // authority is the address of the governance account.
  string authority = 1 [(cosmos_proto.scalar) = "cosmos.AddressString"];

  // params defines the x/bank parameters to update.
  //
  // NOTE: All parameters must be supplied.
  Params params = 2 [(gogoproto.nullable) = false];
}
```

The message handling can fail if:

* signer is not the gov module account address.