The platform, which currently runs on OpenWealth technology, provided by Bravura, is making the switch to FNZ and has previously announced this upgrade would see the platform out of action from 17 to 22 January.
The platform was due to be back up and running today, however Aviva has informed advisers this will now not be happening.
An Aviva spokesman said: ‘We completed the migration of data onto the new Aviva Adviser Platform over the weekend. We have not opened the platform today as we are continuing to work through the extensive checks that are an important part of the overall process.
‘We’re working with our nationwide distribution teams to ensure that advisers are supported through the transition and kept well informed of the progress. We expect the platform to be operating soon.’
Alan Gemmill, managing director of Perth-based advice firm G & S Investment & Mortgages, said he was disappointed with the delay to the upgrade meaning he could not put new business on the platform.
‘In my mind a company with the resources such as Aviva should be able to run two systems together,’ he said. ‘It is detrimental to the client and I just think they should have the capabilities.’