---
title: "Changes to Estimate transfer batch"
method: POST
path: "/v1/payments/transfer-batches/estimate"
---

# Changes to Estimate transfer batch

`POST /v1/payments/transfer-batches/estimate`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 12 revisions.

- **2026-09-02** `496a0685145b` — 1 breaking, 1 warning
- **2026-08-15** `3e302bba5386` — 5 warning

## Changes

- **2026-09-02** `496a0685145b` — 1 breaking, 1 warning
  - added the new required request property `sourceCustodyWalletId`
  - removed the request property `source`
- **2026-08-15** `3e302bba5386` — 5 warning
  - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `400`
  - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `401`
  - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `403`
  - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `404`
  - added the new `SERVICE_UNAVAILABLE` enum value to the `error/code` response property for the response status `500`

---

[Operation](https://skmtc.dev/solana/apis/solana-developer-platform-api/docs/v1/payments/transfer-batches/estimate/post.md) · [API](https://skmtc.dev/solana/apis/solana-developer-platform-api.md) · [Page](https://skmtc.dev/solana/apis/solana-developer-platform-api/changes/v1/payments/transfer-batches/estimate/post)