Hi Rizwaan,
You need to clarify a couple of things before you can upload fixed asset opening balances such as whether you want to upload net book values only, whether you want to upload the original acquisition costs and depreciations, whether the depreciation should be posted on a monthly basis for comparison purposes or cumulative, etc.
Can you explain more about the disposal Parameter? Is it because you also want to track disposed (sold/scrapped) fixed assets and plan to Transfer them or is there any other reason behind?
Probably the best way of uploading fixed assets is (a) uploading the fixed asset master data via DIXF and (b) uploading the different fixed asset posting Journals via DIXF. Step (b) requires some clarifications described above.
Best regards,
Ludwig