Hi @Richard O'Carroll,
There is a known TLS issue with SSIS package while accessing OData Source like Dynamics AX Online
You can resolve this using the below steps:
1.Install Microsoft .NET 4.6 and above on your computer (https://technet.microsoft.com/en-us/library/security/2960358.aspx).
2.Enforce TLS 1.2 on your machine through registry settings. In an elevated command prompt run the following commands:
reg add HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319 /v SchUseStrongCrypto /t REG_DWORD /d 1 /reg:64
reg add HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319 /v SchUseStrongCrypto /t REG_DWORD /d 1 /reg:32
Someone also mentioned it maybe a SharePoint set issue, see the answer here.
Regards,
Zoe Hui
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