At any time, the six latest endpoints are supported. For example, with the 2022.2 endpoint generally available, the following WSDL versions are supported:
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2022.2
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2022.1
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2021.2
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2021.1
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2020.2
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2020.1
If you use an older version, you should upgrade to the latest WSDL version.
NetSuite also makes the eight additional endpoint versions from the previous four years available without support. This means that in addition to the fully supported endpoints listed above, the following eight endpoints also remain available:
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2019.2
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2019.1
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2018.2
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2018.1
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2017.2
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2017.1
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2016.2
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2016.1
Starting from NetSuite version 2019.1, endpoints that are 15 and more versions older will be retired.
After your NetSuite implementation is upgraded to a newer version, retired endpoints are not available anymore.
Consider the following information when you are planning to upgrade to a newer endpoint.
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When your account is upgraded to a new version, support stops for the last endpoint on the list of supported endpoints, and the last endpoint on the list of available endpoints is retired.
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If you do not upgrade to a newer endpoint when your WSDL is retired, your integrations will cease to work because the endpoint for that version will not be available.