Sample soap requests for method downloadAttachment():

• Download an attachment file from the CTR registry: downloadAttachment_1.html
  

Errors:
• Download a donor attachment file when the user does not have required permissions: downloadAttachment_e1.html
  
• Download a donor attachment file when the input (nationalID) is not valid: downloadAttachment_e2.html
  
• Download a donor attachment file when the input (attachmentId) is not valid: downloadAttachment_e3.html