As you know the law comes into effect next week which will force banks to open up customer data https://www.gov.uk/government/news/open-banking-revolution-moves-closer . This will give official access to all bank's APIs.
I Suggest that Kashflow's usea official bank integration instead of Yodlee, which may violate some banks’ Terms and Conditions and can be buggy.
this would be safer and be fully supported by the uk law.
We are pleased to let you know that KashFlow supports Open Banking.