How to import many-to-many relationships in Dynamics CRM
By Joe Gill
Published On 8th July 2014
You cannot import many to many relationships in Dynamics CRM using the out of the box import tool however this functionality was recently added to the fabulous XrmToolBox
You can use XrmToolBox to import and export the details of many to many relationships and making it ideal to transfer relationships from one organization to another.
The file format delimits your mapping identifier using a semicolon as shown below
{d2613faf-8ffd-e311-9e16-2c59e5418dcc};{d2613faf-8ffd-e311-9e16-2c59e5418dcc}
{d2613faf-8ffd-e311-9e16-2c59e5418dcc};{d2613faf-8ffd-e311-9e16-2c59e5418dcc}