Why 1C does not allow to delete objects?

Question

1C

Hello! When deleting marked objects, this form pops up.

Testing and correction did. By mistake, I did not find anything on the Internet. :(
Tell me what could be.
Thanks in advance for your answer.

Answer 1

The objects you are trying to delete are referenced by other objects. To avoid the appearance of "broken links" in 1C, you can only delete objects that are not referenced by other objects.