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‎12-10-2025
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Technical Tip: FortiManager ADOM upgrade from 7.2 to 7.4 fails with 'Invalid Application custom data'

02-27-2025
Description This article describes how to workaround FortiManager error 'Fail (errno=-999):invalid value - prop[application_cus]: Invalid Application custom data. The quotation format of "pattern" is error.' after attempting to upgrade ADOM from v7.2...
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