Problem in Datasource creation in R/3 - Urgent.

Question

Hi experts,
   I ahve created a data Source in the R/3 system for a custom table with one key figure and one unit characteristics.
   I have a view which does not have these fields and I have a extract structure which in turn has an append structure to hold the above mentioned fields.
   I have a generic delta on the date field (upper limit one day).
   I have included the code for extracting the unit and quantity in the exit.
   Now My problem is when i test the extraction in RSA3 I am not able to view the key figure and the unit characteristics.
   In transaction RSA6 I selected the datasource and opened in change mode where i can see the fields for selection, hide, invert and fields known only for exits.
   There I unchecked the unit and quantity fields which were marked as hidden and save it. While saving it gave a error message "Data Source Still contains Error".
   Can Anyone address this problem.
   It's urgent.
Arul jothi.

Answer 1

Hi Shiva and AHP,
  Your suggestions have actually solved my problem. Now i can see the key figure and the unit in the extraction fields. but now the problem is ....See the following
Component  Componenttype   Datatype Reftable     reffield  
ZZBDMNG        BDMNG         QUAN    ZAZOXPRD0020  ZZMSEHI
ZZMEINS        MEINS         UNIT
ZZMSEHI        MSEHI         UNIT     
The above is my append structure.
ZZMSEHI is the field i have declared which i am not using in my program.
now if i do a test extraction this field is also displyed.
how to avoid this?.
even if i hide that field (ZZMSEHI) it is giving the error  "the oltp source still has errors"
arul jothi.