In the US version, hopefully it’s the same in the Canadian version, the ship to address for a PO only comes from the customer record, you have to have a ship to created in that record

Then on the PO insure the drop ship to block has the customer selected, and […]

Resolution for 'creating a purchase issue: 'When creating a purchase order for select items from a sales order is there a way to transfer the address from the SO to the PO?' available: Yes.

The creating a purchase issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the creating a purchase issue yourself by looking for a resolution described in the article. If it is a complex creating a purchase issue or you are unable to solve the issue, you may contact us by clicking here or by using other creating a purchase support options.

For more information about resolving issues related to creating a purchase in Quickbooks/QBO or to get support for the issue 'When creating a purchase order for select items from a sales order is there a way to transfer the address from the SO to the PO?', click the link below: