I attempted to enter a Multiple Category transaction with one of the categories having 0.00 in the outflow field. I received the attached error message. Financier will not allow 0.00 entries unless the 0.00 entry is for the last transaction. After saving the transaction (0.00 entry last), the 0.00 outflow field becomes empty (blank). In case you are wondering why I am entering a 0.00 transaction, it is because I do not have any auto insurance due this month and it is a placeholder transaction.
Thanks for reporting! I created an issue here:
https://trello.com/c/T5nRUCAv/252-cannot-enter-transaction-with-splits-that-have-zero-value
Bump... I just ran into this one too. Amazon didn't charge me for an order so I went back to revert the amounts to $0, but Financier couldn't handle it.