Sweet Room

[David A]

Do we then set SAM at 0% while doing the Sweet Room configuration?

SAM is part of how your speakers interact with the room and this is what you want to correct.
If you normally use SAM you should keep it in it's usual setting for both measurement and configuration of Sweet Room, providing that you use it for room related resonances in the bass region. As always with changes a bit of experimentation will probably be necessary.

Ogs is right that SAM is part of how your speakers interact with the room so you should keep it at your normal setting for calibration and when listening BUT if you then change the SAM setting, you're changing how the speaker loads the room at low frequencies and that may exacerbate some room modes to a greater extent if you increase the setting or reduce the level of modal behaviour if you reduce the setting. That means that you should probably remeasure and create a new Sweet Room config if you change your SAM setting. I wouldn't think a small change in the setting would really need a new configuration but if you change your SAM setting enough to find that you're not as happy with SAM as you were previously then I think you would need to remeasure and create a new configuration.

If you make big changes in the room such as new furniture which is more or less absorbent than the previous furniture, move the speakers and/or listening position, change your speakers, or add or remove physical acoustic treatments you should also remeasure and create a new Sweet Room configuration.

This is not a do it once and it's right forever thing. You're compensating for the acoustic behaviour of your room as it is when you take your measurements. If you make any change to something which affects the acoustic behaviour of your room, then the Sweet Room configuration you're using may be no longer ideal for your room's changed acoustic behaviour.