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Error: "Value Cannot be null. Parameter name: AuthenticationCredentials.SupportingCredentials"

Note:  This is an old article.  However, the troubleshooting tips may still apply to newer versions. 


You receive the following error when connecting to CRM online using the CRM adapter:

Value cannot be null. Parameter name: authenticationCredentials.SupportingCredentials


Replace the local discovery service URL (ie company.crm.dynamics.com) with the generic CRM discovery service. The following is the list of CRM discovery server URLs.

Location Discovery Service URL
North America disco.crm.dynamics.com
EMEA disco.crm4.dynamics.com
APAC disco.crm5.dynamics.com
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