Use empty array for amount 0. Add check to execute

components/forms/CreateTxForm/MsgForm/MsgCreateVestingAccountForm.tsx

@@ -78,14 +78,14 @@ const MsgCreateVestingAccountForm = ({
       try {
         return macroCoinToMicroCoin({ denom: chain.displayDenom, amount }, chain.assets);
       } catch {
-        return { denom: chain.displayDenom, amount: "0" };
+        return null;
       }
     })();
 
     const msgValue = MsgCodecs[MsgTypeUrls.CreateVestingAccount].fromPartial({
       fromAddress,
       toAddress,
-      amount: [microCoin],
+      amount: microCoin ? [microCoin] : [],
       endTime: timestampFromDatetimeLocal(endTime, "s"),
       delayed,
     });

components/forms/CreateTxForm/MsgForm/MsgExecuteContractForm.tsx

@@ -55,6 +55,8 @@ const MsgExecuteContractForm = ({
   useEffect(() => {
     // eslint-disable-next-line no-shadow
     const { contractAddress, customDenom, amount } = trimmedInputs;
+    const denom =
+      selectedDenom.value === customDenomOption.value ? customDenom : selectedDenom.value.symbol;
 
     const isMsgValid = (): boolean => {
       setContractAddressError("");
@@ -86,24 +88,23 @@ const MsgExecuteContractForm = ({
         return false;
       }
 
-      try {
-        macroCoinToMicroCoin({ denom, amount }, chain.assets);
-      } catch (e: unknown) {
-        setAmountError(e instanceof Error ? e.message : "Could not set decimals");
-        return false;
+      if (denom && amount) {
+        try {
+          macroCoinToMicroCoin({ denom, amount }, chain.assets);
+        } catch (e: unknown) {
+          setAmountError(e instanceof Error ? e.message : "Could not set decimals");
+          return false;
+        }
       }
 
       return true;
     };
 
-    const denom =
-      selectedDenom.value === customDenomOption.value ? customDenom : selectedDenom.value.symbol;
-
     const microCoin = (() => {
       try {
         return macroCoinToMicroCoin({ denom, amount }, chain.assets);
       } catch {
-        return { denom, amount: "0" };
+        return null;
       }
     })();
 
@@ -120,7 +121,7 @@ const MsgExecuteContractForm = ({
       sender: fromAddress,
       contract: contractAddress,
       msg: msgContentUtf8Array,
-      funds: [microCoin],
+      funds: microCoin ? [microCoin] : [],
     });
 
     const msg: MsgExecuteContractEncodeObject = { typeUrl: MsgTypeUrls.Execute, value: msgValue };

components/forms/CreateTxForm/MsgForm/MsgInstantiateContract2Form.tsx

@@ -133,7 +133,7 @@ const MsgInstantiateContract2Form = ({
       try {
         return macroCoinToMicroCoin({ denom, amount }, chain.assets);
       } catch {
-        return { denom, amount: "0" };
+        return null;
       }
     })();
 
@@ -162,7 +162,7 @@ const MsgInstantiateContract2Form = ({
       fixMsg: false,
       salt: hexSalt,
       msg: msgContentUtf8Array,
-      funds: [microCoin],
+      funds: microCoin ? [microCoin] : [],
     });
 
     const msg: MsgInstantiateContract2EncodeObject = {

components/forms/CreateTxForm/MsgForm/MsgInstantiateContractForm.tsx

@@ -119,7 +119,7 @@ const MsgInstantiateContractForm = ({
       try {
         return macroCoinToMicroCoin({ denom, amount }, chain.assets);
       } catch {
-        return { denom, amount: "0" };
+        return null;
       }
     })();
 
@@ -138,7 +138,7 @@ const MsgInstantiateContractForm = ({
       label,
       admin: adminAddress,
       msg: msgContentUtf8Array,
-      funds: [microCoin],
+      funds: microCoin ? [microCoin] : [],
     });
 
     const msg: MsgInstantiateContractEncodeObject = {

components/forms/CreateTxForm/MsgForm/MsgSendForm.tsx

@@ -89,14 +89,14 @@ const MsgSendForm = ({ fromAddress, setMsgGetter, deleteMsg }: MsgSendFormProps)
       try {
         return macroCoinToMicroCoin({ denom, amount }, chain.assets);
       } catch {
-        return { denom, amount: "0" };
+        return null;
       }
     })();
 
     const msgValue = MsgCodecs[MsgTypeUrls.Send].fromPartial({
       fromAddress,
       toAddress,
-      amount: [microCoin],
+      amount: microCoin ? [microCoin] : [],
     });
 
     const msg: MsgSendEncodeObject = { typeUrl: MsgTypeUrls.Send, value: msgValue };