How do I pass a variable from one Thread Group to another in JMeter

I was not able to do this with variables (since those are local to individual threads). However, I was able to solve this problem with properties!

Again, my first ThreadGroup does all of the set up, and I need some information from that work to be available to each of the threads in the second ThreadGroup. I have a BeanShell Assertion in the first ThreadGroup with the following:

${__setProperty(storeid, ${storeid})};

The ${storeid} was extracted with an XPath Extractor. The BeanShell Assertion does other stuff, like checking that storeid was returned from the previous call, etc.

Anyway, in the second ThreadGroup, I can use the value of the "storeid" property in Samplers with the following:

${__property(storeid)}

Works like a charm!

Just add a bean shell assertion use a property function to assign the value to a variable (like a global variable) which will hold the value even after it goes to other thread.

thread group >> Add >> Assertions >> Bean Shell Assertion

${__setProperty(Global_variable_Name,${Variable_name_whose_Value_to_be_Passed})}

and then in the other thread you can to call this global variable and can use it

below is the function you need to use to call the stored value:

${__property(global_variable_name)}

https://medium.com/@priyank.it/jmeter-passing-variables-between-threads-a4dc09903b59

This is not possible in JMeter, because it is not normal client behavior (sharing parameters between Threads). Instead of this use one Thread-Group with Controllers:

Thread Group
+ Create inventory
+ + XPath
+ Loop
+ + Purchase inventory

I used set property function and teardown teardowngroup getting values from setupthreadgroup but teardown threadgroup getting 401 error .

I checked all the headers everything look like fine .not sure y teardown failed . Any idea plz advice me