Update VBAP through background program

Hey guys, I am building a program that is deleting a delivery from the system and then needs to update data on the sales order level (VBAP). This program will be run every day to find old deliveries for the deletion. Once delivery is deleted, I need to update one of the VBAP standard fields. Do you have any suggestions on how to approach this topic? First time doing this and concerned like what if someone will have this sales order open at the time of running the report? Will it still get updated or will it crash? Any suggestions will be highly appreciated!