Depending on the report and API version there are 2 possible cases:
- you will get an error
- you will get a partial number of lines
In API version 3 for reports that cost per request, if you do not have enough API units you will get ERROR 132
In API version 4 if you do not have enough API units for the requested number of lines or request you will get 403 error
Partial number of lines
In API version 3 for reports that cost per line, you will get the number of lines for which you have enough api units.
Therefore, it is important to check API Balance, so as not to lose data.