Despatch Express needs the product weight entered in whole grammes with no decimal point. To change the Actinic product weight to grammes use the Order - Weight field and change the default value of the field (in the amend field details) to
!!![*]1000
this will display the value multiplied by 1000 (i.e. in grammes).
In Actinic if you have multiple shipping services and want to map these to different Despatch Express shipping types (e.g. '1st Class RoyalMail' and '2nd Class RoyalMail' map to different Despatch Express Codes) using the following approach:
Use the Shipping Description field (to replace the DE-ServiceID field already in the view and set its default value to:
!!![=]1st Class RoyalMail[STL01][STL02]
This will change all text that says 1st Class RoyalMail to STL01 and all others to STL02