If you receive a message stating that there has been an Authentication Failure it may be due to one, or more, of the below items from within your Gift Aid settings tab. Check through the list, correct as required.
a) Is the 'Gift Aid Submit to Live Gateway' toggled to Yes?
b) Organisational Name correct to HMRC details held?
c) User ID and Password correct?
d) HMRC reference correct?
e) the Authorised person details the main person registered at the HMRC, rather than someone with account access?
f) Title of and spelling of the first and last names of the Authorised person
The donations within the failed claim will be added back into your Active Claim when it is next updated.