---
search:
  tags:
    - billing
    - PATCH
seo:
  description: >-
    What does this do? Updates an… Reference for the PATCH
    /billing/potential-invoices/{id}/manual-positions/{positionId} endpoint in
    the Leadtime Public API API.
sidebar:
  badge: PATCH
  label: Update manual position in potential invoice
title: Update manual position in potential invoice
type: openapi-operation
---
**What does this do?**
Updates an existing custom manual position in a potential invoice. You can modify the title and/or price of the position.

**When to use:**
- To correct the title or price of a manual position
- To adjust pricing before finalizing the invoice
- To update position details after initial creation

**How it works:**
- Updates the manual position stored in the potential invoice metadata
- Only custom manual positions (type: manual) can be updated
- Project manual positions (from project snapshots) are read-only and cannot be modified
- Both title and price must be provided (even if only one is changing)

**Position requirements:**
- Position must exist in the potential invoice
- Position must be a custom manual position (not a project position)
- Title and price are required

**Invoice ID Format:**
The invoice ID follows the format: {type}::{projectId}::{dateFrom}::{dateTo}
- Example: SingleProject::0e9d033a-ab41-4212-8637-66c4e3b01fe2::2025-10-01::2025-10-31

**Permission requirements:**
Requires Invoices.manage permission and access to the project.

<Operation source="api-reference" id="potentialinvoicescontroller-updatemanualposition" />