Hi Everyone,
I am currently in the process of migrating a CRM 2016 on-prem to CRM online. I downloaded the default solution from the on-prem, and tried to import it into Online, but received the following error: 'Invalid name for attribute sendermailboxid. Custom attribute names must start with a valid customization prefix. The prefix for a solution component should match the prefix that is specified for the publisher of the solution.' The error comes from one of the custom activities. I do not understand why is this attribute recognized as custom attribute, since it is definitely system-created. It is present in both source and target systems on all activities. Is it a known issue? Are there any fixes present for this?
Regards,
Adam