Common error messages and what they mean

Here is a reference guide for the most common error messages you may encounter in PO Flow.

"Supplier not found"

The supplier associated with this action no longer exists or has been archived. If the supplier was archived, go to Suppliers, show archived suppliers, and unarchive them to proceed.

"Inventory update failed"

PO Flow could not update inventory in Shopify. This usually means the product variant's inventory tracking is disabled in Shopify, or the inventory item ID on the line item does not match any current Shopify product. Check that the product still exists and has inventory tracking enabled.

"Purchase order limit reached"

Your current plan's monthly PO limit has been reached. Go to Billing to upgrade to a plan with a higher limit or unlimited POs. Starter plan is limited to 50 POs and Growth plan to 250 POs per billing period. Pro plan has no limit.

"QBO sync failed"

The QuickBooks Online sync could not complete. Common causes include an expired QuickBooks token (try disconnecting and reconnecting QuickBooks in Settings → Integrations) or a missing vendor or account in your QuickBooks company file.

"Approval request already exists"

A previous approval request for this PO is still pending. Cancel the existing approval request before submitting a new one, or wait for the current request to be approved or rejected.

"Receipt cannot be deleted — inventory adjustment failed"

When deleting a receipt, PO Flow needs to reverse the Shopify inventory adjustment. If the product no longer exists in Shopify or inventory tracking has been disabled, this reversal cannot happen. Contact support if you encounter this error.

Still seeing an error not listed here

Take a screenshot of the error message and contact PO Flow support at support@hollistechnologies.com. Include your store domain and the PO number if applicable.