https://community.blueprism.com/t5/Product-Forum/BP-6-9-Error-Converting-Active-Directory-database/m-p/101380#M48359 ​​We want to convert from single-authentication Active Directory to multi-authentication Active Directory.<BR />When perform the Action in the Security-Settings-&gt;Sign-on Settings we receive the following error:<BR /><BR />The SID: has already been mapped to another user<BR /><BR />Any ideas whats wrong or whats the Problem with our existing users? Fri, 11 Dec 2020 09:55:06 GMT JLienkamp 2020-12-11T09:55:06Z https://community.blueprism.com/t5/Product-Forum/BP-6-9-Error-Converting-Active-Directory-database/m-p/101380#M48359 ​​We want to convert from single-authentication Active Directory to multi-authentication Active Directory.<BR />When perform the Action in the Security-Settings-&gt;Sign-on Settings we receive the following error:<BR /><BR />The SID: has already been mapped to another user<BR /><BR />Any ideas whats wrong or whats the Problem with our existing users? Fri, 11 Dec 2020 09:55:06 GMT https://community.blueprism.com/t5/Product-Forum/BP-6-9-Error-Converting-Active-Directory-database/m-p/101380#M48359 JLienkamp 2020-12-11T09:55:06Z https://community.blueprism.com/t5/Product-Forum/BP-6-9-Error-Converting-Active-Directory-database/m-p/101381#M48360 <P>Hi, Jörg,</P> <P>Please raise a ticket with Blue Prism Customer Support, and include these details.<BR /><BR />- Paul Labuda<BR />&nbsp; Sr. CSE</P> <H4></H4> Thu, 14 Jan 2021 20:23:50 GMT https://community.blueprism.com/t5/Product-Forum/BP-6-9-Error-Converting-Active-Directory-database/m-p/101381#M48360 PaulLabuda 2021-01-14T20:23:50Z