Invoice on hold.
Find the PO.
When accounts payable needs a purchase order, find who can supply it and get the invoice back into the approval queue with a clear record.
Connect Gmail to get started. You approve each money action.
Ask accounts payable which purchase-order or supplier detail is missing and who must provide it. Coordinate with the client’s project owner, resubmit through the required route and ask the recipient to confirm the new processing status.
Reviewed October 14, 2026 · US business workflows
Get the exact requirement from accounts payable.
Ask whether the invoice was rejected, is waiting for approval or was never received. Request the missing field and submission route. A generic “need a PO” response may still leave the invoice owner unclear.
Keep the invoice number, amount and original submission date available. Check the agreement and ordering correspondence for an existing purchase-order reference before asking the client to create or locate one.
Connect the project owner with the billing requirement.
The person who bought the work may need to supply the reference or complete an internal approval. Send them the exact accounts-payable requirement and ask who owns it. Avoid changing the customer’s order information without confirmation.
If the client uses a supplier portal, confirm the correct invoice upload route and whether a corrected copy should retain the original reference. Use the business’s own invoice-control process to prevent duplicate submissions.
Ask for the reference and the next processing step.
Keep the client’s project contact and billing team aligned. State what was submitted and what is missing. Ask for confirmation when the corrected invoice reaches the approval queue.
Hi [name], accounts payable has held invoice [number] for [amount] because [exact missing detail]. Could you provide the correct purchase-order reference or connect me with its owner? Once supplied, please confirm the required submission route and whether anything else is needed for payment approval.
A successful upload is not a payment date.
After resubmission, keep the receipt or portal reference. Ask whether the invoice is now accepted, what approval remains and when payment is expected. Record any change to the client’s processing date without silently rewriting the original agreement.
If another requirement appears, add it to the same record and resolve it with the responsible person. Once payment arrives, match it to the invoice through your existing bookkeeping process and close the follow-up.
We find the money.
We do the chasing.
Huck finds overdue client invoices and billable expenses missing from an invoice in your Gmail. Huck puts a dollar figure on what it finds and follows up on overdue invoices when you say so. You keep your existing invoicing and payment tools.
Connect Gmail. No bank login. Anything that moves money always asks.
See how Huck follows up on invoices ↗We find the invoice.
Huck finds overdue client invoices and missing billable expenses in your Gmail, with a dollar figure on each finding.
You decide.
Review the proposed follow-up. You decide what Huck can send. Anything that moves money always asks.
We do the chasing.
Huck sends approved reminders and follows up on replies. Huck texts what happened and where to check it. The client pays through your existing payment route; Huck does not collect payment.
A few things
before you act.
Can I make up a PO number to submit the invoice?
No. Ask the client for the correct reference and follow its ordering and approval process.
Does resubmitting mean the invoice is approved?
Not necessarily. Ask for acceptance status, remaining approval steps and the expected payment date.
What can Huck handle?
Huck can find overdue invoices and draft or send approved follow-ups. This page does not claim Huck can create a client’s purchase order or operate every supplier portal.
Go to the source.
- What Huck can handle ↗
Confirmed product scope, approvals and follow-through. The checklist and message examples above are editorial guidance, not vendor policy.
The checklists and message drafts are original Huck editorial examples. Check your agreement, account and the vendor’s current rules before acting.
