Now I understand what you mean. You are right, so Boxing will hang for sure.
And if you do it like this:
1) when performing bulk actions
https://i.imgur.com/2Ig2GRE.jpg - Box asks the IR once for information that the TTN has been printed and information is written to the business process -
https://i.imgur.com/C9xtA5R .jpg
2) After that, we display the same column in the business process log with the values displayed
https://i.imgur.com/cWPPDjT.jpg This field does not constantly request data from the NP, but simply duplicates the information from the BP itself.
The only moment, if the TTN is deleted in the Business Process, the data that the TTN is printed become negative, that is, no, by analogy with the TTN number itself. For example, when we changed the TTN to a new one, the information on the old TTN is erased.