diff --git a/server-plugin/server-plugin-import-jiracloud/src/main/java/io/onedev/server/plugin/imports/jiracloud/ImportOption.java b/server-plugin/server-plugin-import-jiracloud/src/main/java/io/onedev/server/plugin/imports/jiracloud/ImportOption.java
index 9d72336fb6..74ed36d8c1 100644
--- a/server-plugin/server-plugin-import-jiracloud/src/main/java/io/onedev/server/plugin/imports/jiracloud/ImportOption.java
+++ b/server-plugin/server-plugin-import-jiracloud/src/main/java/io/onedev/server/plugin/imports/jiracloud/ImportOption.java
@@ -19,7 +19,7 @@ public class ImportOption implements Serializable {
 
 	private static final long serialVersionUID = 1L;
 
-	private String assigneeIssueField;
+	private String assigneesIssueField;
 	
 	private String dueDateIssueField;
 	
@@ -37,16 +37,16 @@ private static GlobalIssueSetting getIssueSetting() {
 		return OneDev.getInstance(SettingManager.class).getIssueSetting();
 	}
 	
-	@Editable(order=350, description="Specify a user field to hold assignee information.<br>"
+	@Editable(order=350, description="Specify a multi-value user field to hold assignees information.<br>"
 			+ "<b>NOTE: </b> You may customize OneDev issue fields in case there is no appropriate option here")
 	@ChoiceProvider("getAssigneesIssueFieldChoices")
 	@NotEmpty
-	public String getAssigneeIssueField() {
-		return assigneeIssueField;
+	public String getAssigneesIssueField() {
+		return assigneesIssueField;
 	}
 
-	public void setAssigneeIssueField(String assigneeIssueField) {
-		this.assigneeIssueField = assigneeIssueField;
+	public void setAssigneesIssueField(String assigneesIssueField) {
+		this.assigneesIssueField = assigneesIssueField;
 	}
 	
 	@SuppressWarnings("unused")
diff --git a/server-plugin/server-plugin-import-jiracloud/src/main/java/io/onedev/server/plugin/imports/jiracloud/ImportServer.java b/server-plugin/server-plugin-import-jiracloud/src/main/java/io/onedev/server/plugin/imports/jiracloud/ImportServer.java
index 417041d3b0..16be64e4e3 100644
--- a/server-plugin/server-plugin-import-jiracloud/src/main/java/io/onedev/server/plugin/imports/jiracloud/ImportServer.java
+++ b/server-plugin/server-plugin-import-jiracloud/src/main/java/io/onedev/server/plugin/imports/jiracloud/ImportServer.java
@@ -157,13 +157,20 @@ private Long getUserId(Map<String, Optional<Long>> userIds, JsonNode userNode, T
 		String accountId = userNode.get("accountId").asText();
 		Optional<Long> userIdOpt = userIds.get(accountId);
 		if (userIdOpt == null) {
-			String displayName = null;
-			if (userNode.hasNonNull("displayName"))
-				displayName = userNode.get("displayName").asText(null);
-			if (displayName != null)
-				userIdOpt = Optional.ofNullable(User.idOf(OneDev.getInstance(UserManager.class).findByFullName(displayName)));
-			else
-				userIdOpt = Optional.empty();
+			String emailAddress = null;
+			if (userNode.hasNonNull("emailAddress"))
+				emailAddress = userNode.get("emailAddress").asText(null);
+			if (emailAddress != null) {
+				userIdOpt = Optional.ofNullable(User.idOf(OneDev.getInstance(UserManager.class).findByVerifiedEmailAddress(emailAddress)));
+			} else {
+				String displayName = null;
+				if (userNode.hasNonNull("displayName"))
+					displayName = userNode.get("displayName").asText(null);
+				if (displayName != null)
+					userIdOpt = Optional.ofNullable(User.idOf(OneDev.getInstance(UserManager.class).findByFullName(displayName)));
+				else
+					userIdOpt = Optional.empty();
+			}
 			userIds.put(accountId, userIdOpt);
 		}
 		return userIdOpt.orElse(null);
@@ -608,7 +615,7 @@ public void consume(List<JsonNode> pageData) throws InterruptedException {
 							JsonNode assigneeNode = fieldsNode.get("assignee");
 							IssueField assigneeField = new IssueField();
 							assigneeField.setIssue(issue);
-							assigneeField.setName(option.getAssigneeIssueField());
+							assigneeField.setName(option.getAssigneesIssueField());
 							assigneeField.setType(InputSpec.USER);
 							
 							Long userId = getUserId(userIds, assigneeNode, logger);