CORE_ATTACHMENT_MANAGE CORE Endpoint
  /rpc/core/?method=CORE_ATTACHMENT_MANAGE  
  Manage attachment details.  Note:  You cannot add attachments through this method, instead use ATTACH_FILE  
  Object: 322. Click here for more information.  
  Notes:
- You cannot move an attachment to a S3 Bucket via this method, instead use CORE_ATTACHMENT_MOVE
- DataReturn is not available for this method
 
  PARAMETERS TYPE NOTES
  DataReturn Text A comma delimited list of advanced search fields to be returned after a successful save
  Id Numeric Somewhat confusingly, there are two distinct ids for attachments, make sure you pass as per 'Attachment' returned from CORE_ATTACHMENT_SEARCH
  Remove Numeric 1
       
  FileName Text (300) Mandatory
  Notes Text (2000)  
  PublicType Numeric 1=As Per Normal Object Rules [default],2=Public,3=Not Public.  To be able to choose 2 you need the business profile item 460 set to Y
  ShowAsDownload Text (1) Y/N
  Title Text (250) Mandatory
  Type Numeric As per SETUP_ATTACHMENT_TYPE_SEARCH
  URL Text (200) Must be blank if SourceType = 1 (File). Cannot be blank if SourceType = 2 (URL)
  RETURN  
  notes ADDED, UPDATED, REMOVED