In scenarios with a large amount of new or modified records each day, it is worth reaching out to a different tool for defining user’s data subset – Dynamics CRM permissions rather than using the sync filters. If the users don’t have the need to see all the records (but have this privilege out of convenience) the situation can be easily sorted out by allowing the users to see only their records (records belonging to them). This will result not only in shorter synchronization times on the mobile, but also better performance on the server side and the web application.

And what if the situation requires the users to see all the records on the server – in the web application – but not in your mobile scenario? Well luckily for us all, with Dynamics CRM 2015 the Fetch query language was updated and now it is possible to write more complex queries. What this means in practice is that now we can create one query to get the new or modified records that comply the sync filter – with CRM 2015 that is