If you see the message, 'Sorry, you can't settle by this method' in Business Central, you can either exclude the payment from the contract (if you have multiple lines) or cancel the contract and create it again.

To exclude a payment:

1. Select the payment line you want to exclude
2. Click Exclude
3. Confirm that you want to exclude the selected payments from the contract
4. The quote will automatically refresh and, if there are no further payment issues, you will be able to Approve the contract

To cancel and recreate the contract:

1. Select the payment that you want to cancel
2. Click Cancel
3. Confirm that you want to cancel the payment
4. Return to the payment journal line, fix the errors and recreate the contract