The workshop will instead take place later in the year.
A NACFB spokesperson, said: “It is with regret that we have decided to postpone the Hull workshop - originally scheduled for 25 February - until later on in the year.
“February seems to be a busy time for our members and so we have had a smaller than expected take-up on registration.
“Rather than deliver a smaller sub-par event, we have taken the decision to post-pone so that our attendees can get the most out of the event by having a wider range of peers and lenders in attendance.”