Invalid Party Data

When you're trying to send a transaction and an error says "Invalid Party Data" then that means you have an issue with your signer information and will need to fix it before sending.

It could be that the signer has not been assigned a type of authentication to verify their identity. Please make sure you have given all signers some form of authentication.

Make sure each signer has a Role that is unique to them, like "Signer 1" and "Signer 2" or "Seller" and "Buyer" etc.

Make sure all information entered for the signer is correct, so check the spelling of their name, their email address, and any authentication info you typed in for them.

If the error message is specific to which Party, like "P01" then that number corresponds to the signer. In this case, P01 is Signer 1 and that is the one who needs something fixed.

Hope this helps!