just transfered from Eagle to Altium here. So I got 8 schematic files and the respective PCB file in one folder (all Altium format). I imported them in one project but still can't edit them synchronously.
I tried to re-annotate as said in:http://www.carminenoviello.com/2016/08/28/correct-perform-re-annotation-designators-altium/
There is still no link between them. Please help, many thanks.
Best Answer
In Altium, you do not perform linking by changing the designators. In Altium, the Schematic and PCB symbol are connected through Unique IDs. As long as they match, you can change the Designator in the schematic and the change will be transferred to the PCB once you perform a "Update PCB document". Having a correct setup of your unique IDs is probably the most crucial but least understood concept in Altium.
So what do you need to do:
In Altium, no matter what you do, always make sure the unique IDs match between schematic and PCB (from time to time do a D->U, Altium will tell you if something doesn't); otherwise you'll get all kinds of strange behaviour (which makes sense if you understand the inner workings).
If you cannot match all of your objects in the Component Links dialog, the following will happen: