The indicated account number must correspond to the one authorized by the provided API KEY. Otherwise, an authentication error will occur.<br /> The indicated order Id must correspond to a sales order placed on MercadoLibre.<br /><br /> The POST must be done as form.data with the following keys: <br />

• File > file = reference to the file itself.<br />
• Text > text = text to send in the messaging.<br />
• AttachToAleph > text (true or false) = indicates whether the uploaded file is attached to the Alephee order, regardless of the shipment to MercadoLibre.<br />
• AttachmentType > text (0 = Invoice / 1 = Delivery Note) = type of file to attach in Alephee<br /> The file must have a maximum size of 25 MB<br /> Photos, instruction manuals, invoices, and other attachments in JPG, PNG, PDF, and TXT formats of up to 25 MB can be exchanged <br /><br /> Curl example: <br /><br /> curl --location --request POST 'http://api.alephcrm.com/Pedidos/{IdPedido}/Mensajes?IdCuenta={IdCuenta}&amp;api_key={ApiKey}' \ <br /> --header 'Content-Type: application/x-www-form-urlencoded' \ <br /> --form 'Archivo=@/C:/factura.jpg' \ <br /> --form 'Texto=Adjunto enviamos la factura, gracias por su compra.' \ <br /> --form 'AdjuntarEnAleph=true' \ <br /> --form 'TipoAdjunto=0' <br />