Uploading more than 2000 mapping for subledger accounting at once but unable to end date.

Summary:

1)Can we use the Xla Mappings Import Template can be used to upload more than 2000 mapping into Fusion accounting hub?

2) What are the row limits for this template?

3) When we tried to end date some existing mapping, the system threw an error "The combination of input values ______ and effective date ranges isn't unique.". Can the template be used to end date existing mappings?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):