What is the source of csr_user_id column in the oe_order_headers_all table?
We could see below value for this column as shown in the attached screenshot. We would like to confirm whether this value is valid or not. Also the source of this ID.
'999000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'