[We had a dev from ACINQ here](https://stacker.news/items/211009) but they responded because I wrote them a mail with the requested feedback for the Phoenix Wallet Beta and mentioned my post and then never showed up again unfortunately.

I think I'll just write them a new mail :) Should also be in their interest to answer questions like this.

bitcoin

Help me Understand Phoenix Fee Concept

Stacktoshi42

So I mean I wish Pheonix guys were here to explain themselves but if you go to settings (the gear icon next to receive) and scroll down to "Payment channels" you can see what your inbound and outbound liquidity is. So if you didn't have the required inbound liquidity then it would have to do an on-chain tx to increase capacity. 

Other than that you'd have to troubleshoot with me. Remember you can't send an LN transaction to an on-chain address and you can't send an on-chain transaction to an LN invoice. 