Before I left for the Best of Europe in 21 days tour mid September I contacted BofA and Amex. I let them know of my plans for travel and the need to obtain Euros once I landed in Amsterdam. BofA said my Visa pin should not start with a (0) zero as some machines in Europe do not recognize it and should be longer than 4 digits. Thus, I changed it from 4 digit to 7 digit code starting with 4. Amex said I had not used my card for cash withdrawl for so long they needed to issue a temporary pin which would be good for 7 days but must be use within 7 days or it would not work.
Upon landing in AMS I was able to use BofA Visa for withdrawl from ATM. Did not use Amex. Later in the trip I tried to use Amex and the ATM would not accept it. Called Amex and they said the pin time expired and they would not be able to issue another one for 90 days. This made my Amex useless. Not many merchants accept Amex anymore. Tried BofA Visa and this ATM would only let me enter 6 digits even though the ATM at Schiphol airport worked. Now I am not able to get Euros for the remainder of the trip.
Be aware, try your pin numbers for any card you plan to use BEFORE you leave for Europe. Don't start with a zero digit and make it 5 digits long. By the way, I cancelled my AMEX after 34 years of domestic business travel use. It is useless for international travel.