问题
When a custom entity is created, a field is added or changed, someone makes an out-of-box changes to metadata.
How to know who did it and when?
The same for the creation or modification from a UI form. The metadata in CRM doesn't seem to store that information.
回答1:
I think it is not possible to access information you're asking for. Such a information is not available in the on-premise CRM database and I suppose there is a similar situation with CRM Online
回答2:
Not exactly what you are looking for. But this will be a good starting point to achieve what you want.
Using RetrieveMetadataChangesRequest, we can get the schema changes like:
- Adding a custom entity named sample_SampleEntityForMetadataQuery with a custom optionset attribute named : sample_ExampleOptionSet
- ClientVersionStamp: 296646!10/22/2012 21:42:06
- Adding an additional option to the sample_ExampleOptionSet attribute options
- Deleting the sample_SampleEntityForMetadataQuery custom entity
--
Sample code can be found in MSDN/SDK.
protected RetrieveMetadataChangesResponse getMetadataChanges(
EntityQueryExpression entityQueryExpression,
String clientVersionStamp,
DeletedMetadataFilters deletedMetadataFilter)
{
RetrieveMetadataChangesRequest retrieveMetadataChangesRequest = new RetrieveMetadataChangesRequest()
{
Query = entityQueryExpression,
ClientVersionStamp = clientVersionStamp,
DeletedMetadataFilters = deletedMetadataFilter
};
return (RetrieveMetadataChangesResponse)_service.Execute(retrieveMetadataChangesRequest);
}
来源：https://stackoverflow.com/questions/41575510/is-it-possible-to-retrieve-schema-change-information-in-dynamics-crm-online