Export Business Connectivity Model for External Content Types

Requirement: Export the content type of a web in SharePoint into an XML file so that it can be imported in other environments such as Test, Stage, and Production

Solution: Automate the export process of content type from SharePoint web using PowerShell script.

Script:

####################### ENVIRONMENT VARIABLES #######################  
 $SiteUrl= "http://app"  
 #####################################################################  
 $model = Get-SPBusinessDataCatalogMetadataObject -BdcObjectType "Model" -Name "BCSReferenceDataModel" -ServiceContext $SiteUrl  
 Import-SPBusinessDataCatalogModel -Path "C:\ BCSReferenceDataModel.bdcm" -Identity $model