Today I stumbled over the meaning and purpose of the “ImportSequenceNumber” field in Dynamics 365 (or Dynamics CRM, If you have not got used to it like me).
The ImportSequenceNumber field itself
It’s an integer field that is reachable through the field list in a solution. It is searchable but you are not able to add it to a form.
Every import in Dynamics 365 is numbered with an ascending number which is globally stored in the “Organization.CurrentImportSequenceNumber” attribute. Every record created during an import gets this number as value for the ImportSequenceNumber field.
By this way Dynamics 365 can show you all records that are created during an specific import or let you delete all records created by an import.