Working for an organization currently migrating from MYOB to Xero - their decision.

Replicating existing custom application is problematic due to apparent glaring deficiencies in the Xero API compared to MYOB, despite Xero's age advantage.

An example is MYOB's Account Activity Summary End-Point - called AccountRegister - which lists activity by account by month.

This end-point allows for a fast and simple process to compare Budget values to Actual values, without being forced to trawl through all the transactions, and all of the issues that can cause that to be incorrect.

It seems inconceivable that such a basic end-point is not available, or that the Xero API development team didn't take the time to look at a competing product's API, but support says that such an end-point does not exist.

It also appears that access to transactions is much harder to do with the Xero API than with the MYOB API, but I'm still trying to resolve that one.