Hi @bees8, welcome to the community!
Decoding base64 is a bit tricky in n8n, but possible. You’d need to run a bit of JS to do so. The basic approach is for example described here, in a workflow it would look like so:
In this example I am using the Function Item node which allows running arbitrary JS code. The example code adds a new memo_text
field with the decoded value of each memo_base64
field in your transactions
array:
Hope this helps!