Update the migration script

modules/migration/migration-emm_2.1.0-to-iot_3.3.1/cdm-migration.sql

@@ -1,3 +1,13 @@
+-- Before running this script, please make sure that DM_OPERATION does have the INITIATED_BY column. Some customers
+-- may have it because of a patch. But Some customers may not have it, therefore depending on the situation, please
+-- comment or uncomment one of first two ALTER TABLE DM_OPERATION SQL commands.
+
+-- ALTER TABLE DM_OPERATION
+-- ADD COLUMN INITIATED_BY VARCHAR(100) NULL DEFAULT NULL AFTER OPERATION_CODE;
+
+ALTER TABLE DM_OPERATION
+CHANGE COLUMN INITIATED_BY INITIATED_BY VARCHAR(100) NULL DEFAULT NULL;
+
 ALTER TABLE DM_PROFILE
 DROP FOREIGN KEY DM_PROFILE_DEVICE_TYPE;
 
@@ -66,8 +76,7 @@ CREATE TABLE IF NOT EXISTS DM_DEVICE_GROUP_MAP (
 )
   ENGINE = InnoDB;
 
-ALTER TABLE DM_OPERATION
-CHANGE COLUMN INITIATED_BY INITIATED_BY VARCHAR(100) NULL DEFAULT NULL;
+
 
 
 CREATE INDEX IDX_ENROLMENT_DEVICE_ID_TENANT_ID_STATUS ON DM_ENROLMENT(DEVICE_ID, TENANT_ID, STATUS);