after patching SUPEE-10415, saving products in backend causes an error,
Unsupported data type N
does it have to do something with the database? maybe some settings there?
any advice would be really helpfull
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You basically need to have
SUPEE-8788 V2 installed.
Failing that download Magento 22.214.171.124 and copy
files from that installation to your site and see if there are any changes between the files and overwrite them if there are.
I had the same problem on Magento 126.96.36.199. Rolled back all SUPEE patches until the version SUPEE 8787 V1 (including this one) according to the
and installed SUPEE-8788 V2 instead. Then installed all the patches again and the exception was gone.
Compared the files
with the files from the version 188.8.131.52 and the content was the same, except comments in the file headers
Also encountered similar problem (Unsupported data type N) on CE 184.108.40.206 after applying 10415 - this was on saving shopping cart rules in admin & on the front end the user was presented w/ rule couldn't be applied.
I overwrote the lib/Unserialize/ files from 220.127.116.11 & now all is good - shopping cart rules can be saved & applied as expected.
Thanks Matt Antley
PS - if you just apply the lib/Unserialize/ files from SUPEE-8788 V2 you'll get a class not found error