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How does the data query limitation/restriction work?

Hello,

I am trying to collect some data about ESG and other information including Analyst Revisions ranking and Relative Value rank through Python API. In the morning of 07/10/2019, I successfully pulled out data for 4,000 symbols, which is part 1. Then I started part 2, which includes around 2500 symbols. I got no data after 1826 symbols. Please see the attached file for result.

I know there is some limitation for data query, so I waited until 5PM 07/10/2019 and ran the same query on the 2500 symbols, I still couldn't pull out data after 1826 symbols.

I waited until next morning, which is 9AM 07/11/2019, I still got the same results.

I am wondering about how the limitation works? In my case, how long should I wait between part 1 symbols and part 2 symbols?

Thank you!

eikoneikon-data-apipythonrefinitiv-dataplatform-eikonworkspaceworkspace-data-apiapi-limitsquery-string
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Sorry I figured out the problem. Many of the symbols are bonds and they don't have data. It's not about the limitation.

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