Here is a step-by-step guide to help you troubleshoot why Metamask is not showing up when you call the authorization function using an ERC20 token:
Step 1: Check Metamask Installation and Configuration
Check that you have properly installed Metamask in your browser. If it is installed but not enabled, try enabling it by clicking on the three dots next to the Ethereum address and selecting «Metamask» > «Enable»
Step 2: Confirm ERC20 token support
Check that the ERC20 token (e.g. ETH) supports Metamask on your network. You can do this by doing the following:
a. Going to [Metamask] settings(
b. Checking the list of supported tokens and networks.
Step 3: Verify that Metamask is connected
Check that Metamask is connected to your Ethereum account by doing the following:
a. Going to [Metamask] settings(
b. Make sure «Connect Wallet» (or «Wallet» in older versions) is enabled and configured correctly.
Step 4: Verify Contract Address
Make sure the contract address from which you are trying to call the approval function matches the one provided by MetaMask when prompted for permission:
a. Go to [Metamask]( settings.
b. Click «Wallet» > «Connect Wallet» (or «Connect Wallet» in older versions).
c. Select your Ethereum account and click «Connect»
d. Go back to the contract address from which you are trying to call the approval function.
Step 5: Verify Metamask Functionality
Try enabling full Metamask functionality by doing the following:
a. Go to [Metamask]( settings.
b. By selecting «Full Wallet» > «Enable Full Wallet»
c. Click «Save»
Step 6: Check your token balance and contract permissions
Check if your ERC20 token balance is sufficient to call the contract function:
a. Go to [Metamask]( settings.
b. Select the wallet you connected earlier (e.g. MetaMask).
c. Go to the «Balance» tab.
d. Make sure your token balance is greater than or equal to the amount required to call the contract function.
Step 7: Check your contract permissions
Check if Metamask has been granted the necessary permissions for your contract:
a. Go to [Meta-Contract] ( or [Etherscan] (
b. Select your contract.
c. Click «Permissions» > «Grant/Revoke Permission».
d. Check if Metamask has been granted the necessary permissions to call the contract function.
Step 8: Check the ERC20 token metadata
Check if you have access to the ERC20 token metadata (e.g. 0x...) in your contract code:
a. Go to [Etherscan] ( or [Meta-Contract] (
b. Select your contract.
c. Click «Token» > «Metadata».
d. Check if the metadata is correct and includes the ERC20 token address.
Step 9: Try again
If you have completed all these steps, try calling the approval function from Metamask again:
a. Go to [Metamask]( settings.
b. Select «Wallet» > «Connect Wallet» (or «Connect Wallet» in older versions).
c. Click «Save»
d. Go back to your contract address and try calling the authorization function from MetaMask.
If none of these steps resolve the issue, please provide more details about your setup, including:
The specific contract address you are trying to call the authorization function from
The Erc20 token address that MetaMask provides when requested for authorization
Any error messages or logs that may be available
Hope this helps! Let me know if you have any additional questions.
Metamask: The metamask is not displayed when you call the approval function with the Erc20 token
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Here is a step-by-step guide to help you troubleshoot why Metamask is not showing up when you call the authorization function using an ERC20 token:
Step 1: Check Metamask Installation and Configuration
Check that you have properly installed Metamask in your browser. If it is installed but not enabled, try enabling it by clicking on the three dots next to the Ethereum address and selecting «Metamask» > «Enable»
Step 2: Confirm ERC20 token support
Check that the ERC20 token (e.g. ETH) supports Metamask on your network. You can do this by doing the following:
a. Going to [Metamask] settings(
b. Checking the list of supported tokens and networks.
Step 3: Verify that Metamask is connected
Check that Metamask is connected to your Ethereum account by doing the following:
a. Going to [Metamask] settings(
b. Make sure «Connect Wallet» (or «Wallet» in older versions) is enabled and configured correctly.
Step 4: Verify Contract Address
Make sure the contract address from which you are trying to call the approval function matches the one provided by MetaMask when prompted for permission:
a. Go to [Metamask]( settings.
b. Click «Wallet» > «Connect Wallet» (or «Connect Wallet» in older versions).
c. Select your Ethereum account and click «Connect»
d. Go back to the contract address from which you are trying to call the approval function.
Step 5: Verify Metamask Functionality
Try enabling full Metamask functionality by doing the following:
a. Go to [Metamask]( settings.
b. By selecting «Full Wallet» > «Enable Full Wallet»
c. Click «Save»
Step 6: Check your token balance and contract permissions
Check if your ERC20 token balance is sufficient to call the contract function:
a. Go to [Metamask]( settings.
b. Select the wallet you connected earlier (e.g. MetaMask).
c. Go to the «Balance» tab.
d. Make sure your token balance is greater than or equal to the amount required to call the contract function.
Step 7: Check your contract permissions
Check if Metamask has been granted the necessary permissions for your contract:
a. Go to [Meta-Contract] ( or [Etherscan] (
b. Select your contract.
c. Click «Permissions» > «Grant/Revoke Permission».
d. Check if Metamask has been granted the necessary permissions to call the contract function.
Step 8: Check the ERC20 token metadata
Check if you have access to the ERC20 token metadata (e.g.
0x...
) in your contract code:a. Go to [Etherscan] ( or [Meta-Contract] (
b. Select your contract.
c. Click «Token» > «Metadata».
d. Check if the metadata is correct and includes the ERC20 token address.
Step 9: Try again
If you have completed all these steps, try calling the approval function from Metamask again:
a. Go to [Metamask]( settings.
b. Select «Wallet» > «Connect Wallet» (or «Connect Wallet» in older versions).
c. Click «Save»
d. Go back to your contract address and try calling the authorization function from MetaMask.
If none of these steps resolve the issue, please provide more details about your setup, including:
Hope this helps! Let me know if you have any additional questions.
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