# Upload attachment to processing account

`POST /processing-accounts/{processingAccountId}/attachments`

> Before you upload an attachment, make sure that you follow local privacy regulations and get the merchant's consent to process their information.  

**Note:** You need the ID of the processing account before you can upload an attachment. If you don't know the processingAccountId, go to the [Retrieve a Merchant Platform](https://docs.payroc.com/api/schema/boarding/merchant-platforms/retrieve) method.  

The attachment must be an uncompressed file under 50MB in one of the following formats:
- .bmp, csv, .doc, .docx, .gif, .htm, .html, .jpg, .jpeg, .msg, .pdf, .png, .ppt, .pptx, .tif, .tiff, .txt, .xls, .xlsx  

In the request, include the attachment that you want to upload and the following information about the attachment:
- **type** - Type of attachment that you want to upload.
- **description** - Short description of the attachment.  

In the response, our gateway returns information about the attachment including its upload status and an attachmentId that you can use to [Retrieve the details of the Attachment](https://docs.payroc.com/api/schema/attachments/retrieve).