I have added form_Key from Magento base URL as user defined cookie and the same is not getting passed as cookie in subsequent requests.
Name Value Domain Path form_key ${Crr_LaunchFormKey} xxx.xxx.xxxxxxxxxxx.com customer/account/login/
In Results tree request data says [No Cookies]
"The same" is not getting passed as cookie in subsequent requests because the path is not "the same"
If the path is not "the same" - JMeter doesn't pass "the same" to the subsequent request.
Correct path to be "the same" and JMeter will start passing "the same" to the subsequent requests.
Demo:
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