> For the complete documentation index, see [llms.txt](https://docs.clarity.vote/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.clarity.vote/clarity-v1/participating-in-an-organization/admin-actions/manage-membership-badges-and-permissions/adding-and-removing-admins/adding-admin-error.md).

# Adding Admin Error

Several issues can cause this error. Please read through the checks below to help identify your problem.

1. New wallet address

   Until a wallet address has sent or received tokens in a transaction, it will not be recognized. Make sure the wallet address that you are trying to add has a transaction history.
2. Wrong network

   Wallets on the Preview testnet should begin with `addr_test`.\
   Wallets on Mainnet should begin with `addr1`.

If issues persist, try a different address that belongs to the Admin user you want to add.