https://community.blueprism.com/t5/Product-Forum/Failed-Error-to-open-sub-folder-using-BP-Extended-MAPIEx/m-p/46979#M2834 For the folder seperator, have you clicked the i button in the action stage? The Object Documentation that is shown says the following: Character to use as the separato r of folders in any action which takes a path, eg. 'Move Mail' or 'Get Mail'; Default is to not use a separator - ie. the whole string is the item name. For your error, the Mapiex VBO looks for folders below Inbox. So I am presuming you do not have a folder below Inbox called My Mails Folder. Have you put the folder at the top level instead of below Inbox? Tue, 28 Nov 2017 17:12:00 GMT Denis__Dennehy 2017-11-28T17:12:00Z https://community.blueprism.com/t5/Product-Forum/Failed-Error-to-open-sub-folder-using-BP-Extended-MAPIEx/m-p/46978#M2833 Hi All, I am using Blue Prism MAPIEx Automation 2005 (a) business object. Action 1: Configure How can we use the "Folder Separator" input variable ? Action 2: Get Mail When I am using input variable Sub - Folder = "My Mails Folder" I am getting the below Error. Error Message: "Failure in Get Mail function of Blue Prism Extended MAPI Automation. Failed to open sub-folder 'My Mails Folder'". I have referred the BP's MAPIEx User guide. In the guide there is usage with example. Regards, Venu Fri, 24 Nov 2017 11:35:00 GMT https://community.blueprism.com/t5/Product-Forum/Failed-Error-to-open-sub-folder-using-BP-Extended-MAPIEx/m-p/46978#M2833 Anonymous 2017-11-24T11:35:00Z https://community.blueprism.com/t5/Product-Forum/Failed-Error-to-open-sub-folder-using-BP-Extended-MAPIEx/m-p/46979#M2834 For the folder seperator, have you clicked the i button in the action stage? The Object Documentation that is shown says the following: Character to use as the separato r of folders in any action which takes a path, eg. 'Move Mail' or 'Get Mail'; Default is to not use a separator - ie. the whole string is the item name. For your error, the Mapiex VBO looks for folders below Inbox. So I am presuming you do not have a folder below Inbox called My Mails Folder. Have you put the folder at the top level instead of below Inbox? Tue, 28 Nov 2017 17:12:00 GMT https://community.blueprism.com/t5/Product-Forum/Failed-Error-to-open-sub-folder-using-BP-Extended-MAPIEx/m-p/46979#M2834 Denis__Dennehy 2017-11-28T17:12:00Z