Unlike Lead, LFP has a very flat voltage curve. The working voltage range is 3.000-3.400Vpc (24.0V-27.2V) and the simplihi's A+ cells can do better but there are BMS limits. The gross voltage range is 2.500-3.650Vpc (20.0-29.2). Many people cutoff at 22.0 (2.750Vpc).
Your Auto Generator Start settings will require adjustment for the voltage thresholds for LFP.
Also, it is extremely essential that the system is Voltage Corrected. Due to the flat curve, a 0.5V difference in readings will throw things off. All Lithium Based Batteries & their BMS' operate at millivolt & milliohm rates, they are not "brute force" like lead. This is in fact a common error that occurs and is often overlooked, especially for those converting from Lead to Lithium base.
Solar Charge Controller while charging will commonly sense/show a Lower Voltage while Charging, when no charging is occurring they tend to show a higher voltage, They should be voltage matched for the Charging differential between the battery bank batt post terminals & the SCC.
Inverter/Chargers act similarly as well. when charging they sense lower voltage, while or discharging they sense higher. In this instance, it should be voltage matched to the Discharge differential.
* There is a link regarding calibration in my signature as well as other material that may be helpful to you.
Below are Thumbnails, click to expand, you may wish to save these for reference.
Hope it Helps, Good Luck.