Mapping logic and alert configuration

Question

My scenario is Asynchronous. No BPM in this scenario
Sender & receiver data type is like this
HEADER
   HedgId
   ItemNo
ITEMDATA
  Month
  Vol
  Hsfo
Conditions are: Sender side
1). If above fields are come to blank into Xi (means no value in the fields) alert will trigger and send that alert to Alert inbox. Above HedgId and ItemNo field values are empty how can send the alert to alert in box. How can do the field value is mandatory for this particular fields.
2). At least one above Itemdata is mandatory (for this I did occurrence are 1:1) is it right? If there is no item data come to xi with empty fields xi has to send the alert to alert inbox. (here also item data and remaining fields and fields data are mandatory) if I put occurrence as 1:1 if the fields come to xi with no values also mapping will be pass. How can I make to value of the field is mandatory.
please suggest me how to do this.

Answer 1

Hi,
  In target structure, if you kept occurance 1-1 then filed is mandatory.It means the source file the filed not exits then you can get the error in message mapping.item data you need to keep 1-unbounded occurance.If field exits and have no values then that time map like below.
Source fieldlengthequalsS(constant(0))notIfwithoutelse(Source field)---TargetField.
Regards,
Prakasu.M