Please try the steps below:
1. Navigate to Reports > Saved Searches > All Saved Searches > New
2. Select the Search Type = Transaction
3. Enter the Search Title for this saved search
4. Under Criteria tab > Standard subtab, add the following fields:
   — Account = choose the Accounts Payable or Accounts Receivable accounts
   — Customer (Main Line) fields… > choose Other Relationships = Vendor
5. Under Results tab > Columns subtab, the following fields are required to be added:
   — Customer (Main Line) fields… > choose Balance
        — Summary Type = Group
        — User may want to add a custom label to differentiate this column as the Customer Balance column
   — Vendor fields > choose Balance
        — Summary Type = Group
        — User may want to add a custom label to differentiate this column as the Vendor Balance column
   — Name
        — Summary Type = Group
   — Amount
        — Summary Type = Sum
6. Save and Run the search and verify the accuracy of the result