Item Charge assignment

Hi all! Need some urgent help! have created a sales invoice.Now i want to assign an item charges to that invoice.For this, I have created a seperate invoice. On posting the item charge it is getitng updated properly in the value entry field. Now, I want to know for which invoice I have applied the item charges. I might have created 3 invoices for 3 item charges applicable to a single shipment.How can I associate the item charges for the corresponding invoice Kindly help out immediately regards,

Hi, in the invoice table, there are 2 fields (ctrl+F8): Applies to doc. type Applies to doc. number I think you can use these (plus ITEM CHARGE ASSIGMENT) bye

but I’m not sure it works well…

but I’m not sure it works well…