Yes. Every time you create a trip
then choose to activate online fundraising for that trip, you will have
to re-enter some personal / organizational information for WePay which includes the EIN
number, linked bank account, etc. each time. (We admit this is a bit inconvenient, but the benefit is that it allows you to keep funds for each trip
tracked in separate sub-accounts, versus mixing them
So, you can update your EIN number each time you create a trip. Or, if you get a corrected EIN
number during the middle of a trip, you can contact WePay
support services and request a change.