I have a client who needs to upgrade from Magento 2.2 to Magento 2.4.2. Initial estimates from the Magento partner managing the site are in the range of 10-12 weeks (man days). Can anyone share their experience and how this figure might be realistic? It seems very high.
Thanks and regards
Upgrading from Magento 2.2 to 2.4 sometimes challenging. We usually say major version upgrade.
So there are chances the time they suggested is ok in terms of days.
In terms of estimation, I can't say for sure, how much they are charging.
You can try to reach out to other agencies too to understand the process and estimates.