When I run a test with1 Vuser, test runs fine, with concurrency test fails with snapshot error.
In concurrency test first user have e1s1, second user will have e2s1 snapshot IDs. Parameterization wont work because it depends on server response. Correlation also difficult because so many snap shot IDs (e1s1 to e1s13) in Script.
Example
gmail/.../quote
https://gmail/onlineQuote/quote?execution=e2s1
https://gmail/onlineQuote/quote?execution=e2s1