So if you have an Airtable Enterprise account and issue personal access tokens (PATs) tied to a service account.  Apparently, once you create 100 PATs, the interface WILL NOT let you issue any additional PATs tied to that service account:

Honestly, this seems very arbitrary.  The workaround is to create *another* separate service account to issue new PATs, but this seems very, very janky.

I don't understand why Airtable gates the max number of PATs per service account to 100 total, but it is what it is.  This is mildly annoying.  FYI.