It seems that the installation script does not validate the SSL certificate. The comment is that executing scripts downloaded from the internet as root is a bad idea, and not validating the SSL certificate when doing so is awful.
More explanation @Paul:
When the issue occurs, should see if restarting presence or lookup helps. If so - that is the issue and should be sorted. First need to ensure that that is the issue...
Hello!
You can mark it as closed as option. If document is connected with other documents you can not delete it so you will not be able to delete PO, as you will not be able to remove Goods receipt...