Matching customers in GoCardless for Xero
If a customer has an active mandate but has not been linked to a Xero ID they need to be manually linked to enable automatic reconciliation and payments to be taken.
You can find out more information on how to do so here: https://support.gocardless.com/hc/en-us/articles/360001271889-Matching-customers-in-GoCardless-for-Xero