Hi Naomi,

> But I don't want to save when nothing has changed - what should I do to avoid it?

In this case you need to find the code that saves data and extend it with some code that performs a TABLEREVERT() on the current record when the record hasn't changed. The key is that you have to either use TABLEREVERT() or TABLEUPDATE(). You cannot simply do nothing, even when data hasn't changed.