---
title: "Changes to Create Campaign"
method: POST
path: "/print-mail/v1/campaigns"
---

# Changes to Create Campaign

`POST /print-mail/v1/campaigns`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 7 revisions.

- **2026-06-12** `537d2bbc624a` — 7 breaking, 8 info
- **2026-05-21** `afd5935c2b2c` — 1 breaking, 1 warning, 4 info
- **2026-05-01** `c8fedcbd705e` — 12 warning, 12 info

## Changes

- **2026-06-12** `537d2bbc624a` — 7 breaking, 8 info
  - removed `subschema #1, subschema #2` from the `cheque/allOf[#/components/schemas/CampaignChequeFieldsCreate]/letterPDF` request property `anyOf` list
  - removed `subschema #1, subschema #2` from the `letter/allOf[#/components/schemas/CampaignLetterFieldsCreate]/attachedPDF/allOf[#/components/schemas/AttachedPDF]/file` request property `anyOf` list
  - removed `subschema #1, subschema #2` from the `letter/allOf[#/components/schemas/CampaignLetterFieldsCreate]/pdf` request property `anyOf` list
  - removed `subschema #1, subschema #2` from the `postcard/allOf[#/components/schemas/CampaignPostcardFieldsCreate]/pdf` request property `anyOf` list
  - removed `subschema #1, subschema #2` from the `selfMailer/allOf[#/components/schemas/CampaignSelfMailerFieldsCreate]/pdf` request property `anyOf` list
  - removed `subschema #1, subschema #2` from the `snapPack/allOf[#/components/schemas/CampaignSnapPackFieldsCreate]/pdf` request property `anyOf` list
  - added `#/components/schemas/BinaryFile, subschema #1` to the `letter/allOf[#/components/schemas/CampaignLetterFields]/attachedPDF/allOf[#/components/schemas/AttachedPDF]/file` response property `oneOf` list for the response status `201`
  - added the media type `multipart/form-data` to the request body
  - added `#/components/schemas/BinaryFile, subschema #1` to the `cheque/allOf[#/components/schemas/CampaignChequeFieldsCreate]/letterPDF` request property `oneOf` list
  - added `#/components/schemas/BinaryFile, subschema #1` to the `letter/allOf[#/components/schemas/CampaignLetterFieldsCreate]/attachedPDF/allOf[#/components/schemas/AttachedPDF]/file` request property `oneOf` list
  - added `#/components/schemas/BinaryFile, subschema #1` to the `letter/allOf[#/components/schemas/CampaignLetterFieldsCreate]/pdf` request property `oneOf` list
  - added `#/components/schemas/BinaryFile, subschema #1` to the `postcard/allOf[#/components/schemas/CampaignPostcardFieldsCreate]/pdf` request property `oneOf` list
  - added `#/components/schemas/BinaryFile, subschema #1` to the `selfMailer/allOf[#/components/schemas/CampaignSelfMailerFieldsCreate]/pdf` request property `oneOf` list
  - added `#/components/schemas/BinaryFile, subschema #1` to the `snapPack/allOf[#/components/schemas/CampaignSnapPackFieldsCreate]/pdf` request property `oneOf` list
  - removed `subschema #1, subschema #2` from the `letter/allOf[#/components/schemas/CampaignLetterFields]/attachedPDF/allOf[#/components/schemas/AttachedPDF]/file` response property `anyOf` list for the response status `201`
- **2026-05-21** `afd5935c2b2c` — 1 breaking, 1 warning, 4 info
  - added `#/components/schemas/PostcardPremiumPaperID` to the `postcard/allOf[#/components/schemas/CampaignPostcardFieldsCreate]/paper` request property `allOf` list
  - removed `#/components/schemas/PremiumPaperID` from the `postcard/allOf[#/components/schemas/CampaignPostcardFieldsCreate]/paper` request property `allOf` list
  - added the new optional request property `letter/allOf[#/components/schemas/CampaignLetterFieldsCreate]/paper`
  - added the optional property `letter/allOf[#/components/schemas/CampaignLetterFields]/paper` to the response with the `201` status
  - added `#/components/schemas/PostcardPremiumPaperID` to the `postcard/allOf[#/components/schemas/CampaignPostcardFields]/paper` response property `allOf` list for the response status `201`
  - removed `#/components/schemas/PremiumPaperID` from the `postcard/allOf[#/components/schemas/CampaignPostcardFields]/paper` response property `allOf` list for the response status `201`
- **2026-05-01** `c8fedcbd705e` — 12 warning, 12 info
  - removed the request property `chequeProfile`
  - removed the request property `letterProfile`
  - removed the request property `postcardProfile`
  - removed the request property `selfMailerProfile`
  - removed the optional property `chequeProfile` from the response with the `201` status
  - removed the optional property `letterProfile` from the response with the `201` status
  - removed the optional property `postcardProfile` from the response with the `201` status
  - removed the optional property `selfMailerProfile` from the response with the `201` status
  - added the new `internal_server_error` enum value to the `error/type` response property for the response status `500`
  - added the new `not_found_error` enum value to the `error/type` response property for the response status `404`
  - added the new `rate_limit_exceeded_error` enum value to the `error/type` response property for the response status `429`
  - added the new `validation_error` enum value to the `error/type` response property for the response status `400`
  - added the new optional request property `cheque`
  - added the new optional request property `letter`
  - added the new optional request property `postcard`
  - added the new optional request property `selfMailer`
  - added the new optional request property `snapPack`
  - added `subschema #1, subschema #2` to the response body `anyOf` list for the response status `401`
  - removed `subschema #1, subschema #2` from the response body `anyOf` list for the response status `401`
  - added the optional property `cheque` to the response with the `201` status
  - added the optional property `letter` to the response with the `201` status
  - added the optional property `postcard` to the response with the `201` status
  - added the optional property `selfMailer` to the response with the `201` status
  - added the optional property `snapPack` to the response with the `201` status

---

[Operation](https://skmtc.dev/postgrid/apis/postgrid-address-verification-api/docs/print-mail/v1/campaigns/post.md) · [API](https://skmtc.dev/postgrid/apis/postgrid-address-verification-api.md) · [Page](https://skmtc.dev/postgrid/apis/postgrid-address-verification-api/changes/print-mail/v1/campaigns/post)