Limit of basic user account creation in Appian

What kind of limit do you mean?

I hope you are talking about account creation.
No built-in limit to create basic user accounts. Limit comes from your Appian license, which sets a total user limit (not specific to user type).
Check your agreement or contact Appian support for the exact number.

Hi [mention:d79b8279413e474ab882b532e6edacc1:e9ed411860ed4f2ba0265705b8793d05]  I will depend on the licensing agreement with Appian. May I know what is your requirement ?