You try to use the Hybrid Configuration Wizard or the Set-HybridConfiguration Exchange Management Shell cmdlet to set up a hybrid deployment. This hybrid deployment is for your on-premises Microsoft Exchange Server 2013 or Microsoft Exchange 2010 environment and Microsoft Exchange Online in Office 365. However, you receive an error message that states that the value of the TlsCertificateName parameter exceeds the maximum limit of 256 characters. The error message resembles the following:
The length of the property is too long. The maximum length is 256 and the length of the value provided is <Number>.
This issue occurs if the value of the rangeUpper attribute for the TlsCertificateName parameter contains more than 256 characters. Certificate names can't have more than 256 characters.
Do one of the following.
If you're running Exchange 2013
Install the latest cumulative update for Exchange Server 2013. To download the latest cumulative update, go to Updates for Exchange 2013.
Run the latest version of the Hybrid Configuration wizard. To download the latest Hybrid Configuration wizard, go to http://aka.ms/TAPHCW.