Rewrite a purchase order

PUT /pos/{poId}

Rewrite a purchase order: the supplier and/or the whole line set (replace semantics — the lines sent are the lines the order has afterwards).

supplierId attaches the order to a CRM company, or detaches it when sent as null (the typed supplier name stays). A draft takes anything. Once authorised, a line with units already received is frozen — 409 PoLineReceived if its quantity would drop below what arrived or its cost changes — while unreceived lines may change, be removed or be added, and inventory's incoming expectations are re-registered to match (cancel, then expect the new outstanding quantity, keyed by the order's revision; 502 InventoryUnavailable if that fails). 409 PoNotEditable once received, invoiced, closed or cancelled. Appends purchasing.po-updated. Idempotent by content: a retry that says what the order already says is acknowledged and appends nothing. A stock-changing rewrite is saved as the order's plan first and its fact lands once inventory has every movement; a plan inventory cannot take yet is carried out by its own run when inventory answers.

Access

Requires purchasing:write.

How scopes come from roles: Scopes and roles. Getting a token: Authentication and app tokens.

Retries

Idempotent by content: a retry that says what the order already says is acknowledged and appends nothing.

Why every write carries a key: Idempotency and retries.

Facts appended

purchasing.po-updated

What a fact is: Facts and the journal.

AI agent tool

Agents call this as purchasing_update_po (Purchasing: Update PO), in the purchasing toolset.

Connecting an agent: AI agents.

Example

curl

curl -X PUT 'https://purchasing.getmanifold.io/pos/po_01a1340f-9980-7c41-9d37-d97a5cec069b' \
  -H "Authorization: Bearer $MANIFOLD_TOKEN" \
  -H 'Content-Type: application/json' \
  -d '{
  "lines": [
    {
      "sku": "WIDGET-RED",
      "quantity": 30
    },
    {
      "sku": "WIDGET-BLUE",
      "quantity": 10
    }
  ]
}'

JavaScript (fetch)

const response = await fetch("https://purchasing.getmanifold.io/pos/po_01a1340f-9980-7c41-9d37-d97a5cec069b", {
  method: "PUT",
  headers: { Authorization: `Bearer ${process.env.MANIFOLD_TOKEN}`, "Content-Type": "application/json" },
  body: JSON.stringify({
    "lines": [
      {
        "sku": "WIDGET-RED",
        "quantity": 30
      },
      {
        "sku": "WIDGET-BLUE",
        "quantity": 10
      }
    ]
  }),
});
if (!response.ok) throw new Error(`${response.status}: ${await response.text()}`);
const answer = await response.json();

Request body · application/json

{
  "lines": [
    {
      "sku": "WIDGET-RED",
      "quantity": 30
    },
    {
      "sku": "WIDGET-BLUE",
      "quantity": 10
    }
  ]
}

Response · 200 · application/json

{
  "id": "po_01a1340f-9980-7c41-9d37-d97a5cec069b",
  "number": "PO-00002",
  "serial": 2,
  "reference": "NW-REORDER-RED",
  "supplier": "Northwind Components",
  "supplierId": "cmp_01a15884-6399-7e5f-8a6b-1c2d3e4f5a6b",
  "currency": "AUD",
  "status": "draft",
  "lines": [
    {
      "sku": "WIDGET-RED",
      "ordered": 30,
      "received": 0,
      "cancelled": 0,
      "unitCostCents": 1180
    },
    {
      "sku": "WIDGET-BLUE",
      "ordered": 10,
      "received": 0,
      "cancelled": 0,
      "unitCostCents": 1250
    }
  ],
  "landedCosts": [],
  "payables": [],
  "payments": [],
  "revision": 0,
  "createdAt": "2026-10-06T23:40:00.000Z",
  "updatedAt": "2026-10-07T00:05:00.000Z"
}

The panel writes this call in other languages. It does not send it: Manifold's APIs do not take calls from a web page on another site, so run the call from your own code or terminal. The whole API as OpenAPI: purchasing-manager.openapi.json. Base URL https://purchasing.getmanifold.io.

Errors

Every refusal is a status and a JSON body whose _tag names it. A refused call changes nothing.

`401`

Refusal	What it means	What to do
`Unauthorized` reason	The token is missing, expired or not one Manifold issued.	Get a fresh token and send the call again.
`TokenAlreadyUsed` tokenId	A single-use app token was already spent.	Mint a new token for this call.

`402`

Refusal	What it means	What to do
`SubscriptionRequired` status	The organization's subscription has lapsed, so writes are refused.	An owner settles billing. Reads still work meanwhile.

`403`

Refusal	What it means	What to do
`TenantRequired` userId	The token names no organization.	Choose the organization, then get a new token.
`ScopeRequired` required	The token's roles do not grant the scope this call needs.	Ask an owner or admin for a role that grants it.

`404`

Refusal	What it means	What to do
`PoNotFound` poId	No such record in this organization.	Check the id in the path or the body.
`ItemNotFound` sku	No such record in this organization.	Check the id in the path or the body.

`409`

Refusal	What it means	What to do
`PoNotEditable` poId, status	The purchase order cannot be edited in its state. `status` says which.	Read the purchase order.
`PoLineReceived` poId, sku, received, requested	Units have already arrived on this line, so its cost and the quantity received are fixed.	Change only what has not arrived.
`LineUncosted` skus	A line has no cost, and the purchase order needs one on every line. `skus` names them.	Set a cost on each line.
`KitNotBuyable` sku, reason	The request was refused. `reason` says why.	Nothing changed. Read the record, then decide.
`StockSkuOnTwoLines` sku, lines	The request was refused, and nothing changed.	Nothing changed. Read the record, then decide.
`MirroredFromSource` source	This area is fed by your source system until the organization goes live.	Make the change in the source system, or go live first.

`502`

Refusal	What it means	What to do
`InventoryUnavailable` reason	The inventory service did not answer, so nothing changed.	Send the same request again shortly.

`503`

Refusal	What it means	What to do
`RequestLogUnavailable` tokenId, reason	The service could not record the request, so it did nothing.	Send the same request again shortly.

How refusals work everywhere: Errors.