If the Set property to all value instances option is selected, the value of the property mapping will be an array. If the option is not selected, the value of the property mapping will be a single value. If the property to be mapped consists of multiple values and the option is not selected, the values will be concatenated together into a single string, separated by a semi-colon (;) as a delimiter.
Note:
If the value of the property to be mapped does not exist, the property mapping will be cleared from the property bag.