I've had m2E installed for about a week and it's giving me nightmares. A couple of issues.
I previously had Codisto installed which was syncing about 5000+ products, and unfortunately had to remove the extension due to server issues. After installing M2E, I synced up the 3rd party listings and moved them over to the M2E Tab. After this was done, M2E started importing the same listings (now unmapped due to the SKUs already being in use) into the 3rd party tab and relisting them. Meaning I now have a load of duplicate listings in ebay.
I've since disabled the relisting & revising settings in the configuration and attempted to stop all the duplicate listings sitting in the 3rd party tab. However each time I do that they resync shortly after and appear as listed again.
Any help would be much appreciated.