When editing items, what's the difference between "Always map to updated item" and "Replace Item only this time"?

When editing and saving item details, you are given the option to:

1. Always map to updated item
2. Replace Item only this time

If the "essence of the item" in the Update From is the exact same as the Update To, then it's recommended that you select Create New Item Mapping Rule, just like the example above.

Mapping the item tells Ottimate: the next time Ottimate to Ottimate reads the "Updated From" item, show the mapped "Updated To" item instead.  You'll want to use this in times where you're:

• Renaming the item

• Fixing a typo in the SKU

• Editing the GL Account

Sometimes, however, the "essence of the item" is different.  "Cranberry dried" is a different item than "cranberry sauce," so you wouldn't want to map one to the other:

The recommended option here is to use Only Change For This Invoice.