For some XRP accounts, a tag is required to receive money to ensure it goes to the right recipient. https://xrpl.org/source-and-destination-tags.html#requiring-tags Right now it appears as if that's not supported in the manager UI: 
For some XRP accounts, a tag is required to receive money to ensure it goes to the right recipient.
https://xrpl.org/source-and-destination-tags.html#requiring-tags
Right now it appears as if that's not supported in the manager UI: