Would you please tell us whether there are some customers in the A/R list who are in same group (same owner) or not ? If some customers belong to same group, please let us know which customers are in same group.
We noticed that some of customers are indicated in random in previous A/R (As end of March). But, it is corrected in the latest A/R (as of April). Please make sure to not indicate the customers in random for A/R in the future.