setPrefix

The first line which I always write at the start of the 'run' method in a RunBase descenant is:

setPrefix(this.caption());

Settings prefixes is very useful for detect causes of errors later.

There are also very useful macros: PrefixField, PreFixFieldValue

For example, this code will set prefix to the: ": _item.itemID"

void processInventTable(InventTable _item)
{
;
    setPrefix(#prefixField(_item, itemID));
    ...

BTW, I think it will be also great to have a good logging system in Ax, infolog is not enough