Hi Guys is there a way to link the item fulfillment to invoice? I followed suite answers and its only working if we have one item fulfillment .if we have multiple item fulfillment i cannot source the item fulfillment to invoice. Any help would be much appreciated.

Not out of the box I don't think. I've seen people do a custom field + script to tag the IF and/or invoice with each other's info so they're linked though.

Thanks RJMNS