Using Z Interface for Updating Asset Master Records

Hi,

I am trying to use P1201Z1 application to update around 600 Assets status to "Scrap". I have entered all the mandatory fields but when I try to run the R1201Z1I, it gives me below errors

Error: Asset Number Invalid - Input - This asset number does not exist in the Item Master file (F1201) or it is invalid

Error: Business Unit Number Invalid - This business unit number does not exist in the Business Unit  Master file (F0006).

When I checked Asset Number it is valid and already present in F1201 and Business unit is also valid.