# Create credit memo attachment

## Creates a new credit memo attachment.

> Uploads a file and associates it with the specified credit memo (e.g., CRD-3295-7900-0234).\
> The request must be sent as multipart/form-data containing the file and optional properties (name, description).

```json
{"openapi":"3.0.1","info":{"title":"Marketplace API","version":"5.0.5164-g77db55e8"},"servers":[{"url":"https://api.platform.softwareone.com"}],"paths":{"/public/v1/billing/credit-memos/{creditMemoId}/attachments":{"post":{"tags":["CreditMemoAttachments"],"summary":"Creates a new credit memo attachment.","description":"Uploads a file and associates it with the specified credit memo (e.g., CRD-3295-7900-0234).\nThe request must be sent as multipart/form-data containing the file and optional properties (name, description).","parameters":[{"name":"creditMemoId","in":"path","description":"The ID of the credit memo to which the attachment belongs.","required":true,"schema":{"type":"string"}}],"requestBody":{"content":{"multipart/form-data":{"schema":{"type":"object","properties":{"attachment":{"type":"object","properties":{"Name":{"type":"string","description":"The name of the attachment."},"Description":{"type":"string","description":"The description of the attachment."}},"description":"Json representation of the attachment"},"file":{"type":"string","description":"The file of the attachment.","format":"binary"}}},"encoding":{"attachment":{"contentType":"application/json"},"file":{"contentType":"application/octet-stream"}}}}},"responses":{"201":{"description":"Created","content":{"application/json":{"schema":{"$ref":"#/components/schemas/CreditMemoAttachment"}}}},"400":{"description":"Bad Request","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ProblemDetails"}}}}}}}},"components":{"schemas":{"CreditMemoAttachment":{"type":"object","properties":{"audit":{"allOf":[{"$ref":"#/components/schemas/PlatformObjectAudit"}]},"$meta":{"allOf":[{"$ref":"#/components/schemas/PlatformMetadata"}],"nullable":true},"revision":{"type":"integer","format":"int32"},"name":{"type":"string","description":"Name of the attachment."},"type":{"allOf":[{"$ref":"#/components/schemas/BillingAttachmentType"}],"description":"Specifies the type of the attachment, such as input, output, or general attachment."},"filename":{"type":"string","description":"Represents the name of the file associated with the attachment."},"size":{"type":"integer","description":"Indicates the size of the file in bytes.","format":"int64","nullable":true},"contentType":{"type":"string","description":"Represents the MIME type of the file content."},"description":{"type":"string","description":"Provides a description of the attachment."},"isDeleted":{"type":"boolean","description":"Indicates whether the attachment has been marked as deleted."},"id":{"type":"string","description":"The unique identifier of the attachment."},"creditMemo":{"type":"object","allOf":[{"$ref":"#/components/schemas/CreditMemoRef"}]},"isExternal":{"type":"boolean","description":"Indicates whether the attachment is stored externally"}},"additionalProperties":false,"description":"Represents an attachment associated with a credit memo in the billing system."},"PlatformObjectAudit":{"type":"object","properties":{"created":{"allOf":[{"$ref":"#/components/schemas/PlatformObjectEvent"}],"nullable":true},"updated":{"allOf":[{"$ref":"#/components/schemas/PlatformObjectEvent"}],"nullable":true}},"additionalProperties":false},"PlatformObjectEvent":{"type":"object","properties":{"at":{"type":"string","format":"date-time","nullable":true},"by":{"type":"object","allOf":[{"$ref":"#/components/schemas/PlatformIdentityRef"}]}},"additionalProperties":false},"PlatformIdentityRef":{"type":"object","properties":{"id":{"type":"string"},"name":{"type":"string"},"icon":{"type":"string","nullable":true},"revision":{"type":"integer","format":"int32"}},"additionalProperties":false},"PlatformMetadata":{"type":"object","properties":{"omitted":{"type":"array","items":{"type":"string"}}},"additionalProperties":false},"BillingAttachmentType":{"enum":["Attachment","Input","Output"],"type":"string","description":"Represents the type of billing attachment."},"CreditMemoRef":{"type":"object","properties":{"revision":{"type":"integer","format":"int32"},"id":{"type":"string","description":"The unique identifier of the credit memo."}},"additionalProperties":false,"description":"Represents a credit memo in the billing system."},"ProblemDetails":{"type":"object","properties":{"type":{"type":"string","nullable":true},"title":{"type":"string","nullable":true},"status":{"type":"integer","format":"int32","nullable":true},"detail":{"type":"string","nullable":true},"instance":{"type":"string","nullable":true}},"additionalProperties":{}}}}}
```