Upgrade ESS

ESS is a cloud-based product and will be updated when a new version is released. You will receive notifications about when the version will be upgraded.
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For information on the latest ESS version, refer to the article Current version of ESS.
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The MicrOpay Client Service (MCS) sits between ESS and MicrOpay. This needs to be kept up to date to ensure the successful flow of data between the two systems.
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If MicrOpay is hosted in the Online Environment, then MCS will be upgraded on your behalf when a new version is released.
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If you are a desktop user of MicrOpay (i.e. MicrOpay is stored in your environment), then your organisation will need to ensure that MCS is on the current version. Refer to the article Current WebAPI - MicrOpay Client Service Version for more information on the latest release.