diff --git a/plugins/modules/ipadelegation.py b/plugins/modules/ipadelegation.py
index e30d3d7008..7dba924ab9 100644
--- a/plugins/modules/ipadelegation.py
+++ b/plugins/modules/ipadelegation.py
@@ -180,10 +180,10 @@ def main():
     names = ansible_module.params_get("name")
 
     # present
-    permission = ansible_module.params_get("permission")
-    attribute = ansible_module.params_get("attribute")
+    permission = ansible_module.params_get_lowercase("permission")
+    attribute = ansible_module.params_get_lowercase("attribute")
     membergroup = ansible_module.params_get("membergroup")
-    group = ansible_module.params_get("group")
+    group = ansible_module.params_get_lowercase("group")
     action = ansible_module.params_get("action")
     # state
     state = ansible_module.params_get("state")
@@ -233,6 +233,7 @@ def main():
 
         commands = []
         for name in names:
+            args = {}
             # Make sure delegation exists
             res_find = find_delegation(ansible_module, name)
 
@@ -244,14 +245,7 @@ def main():
 
                 if action == "delegation":
                     # Found the delegation
-                    if res_find is not None:
-                        # For all settings is args, check if there are
-                        # different settings in the find result.
-                        # If yes: modify
-                        if not compare_args_ipa(ansible_module, args,
-                                                res_find):
-                            commands.append([name, "delegation_mod", args])
-                    else:
+                    if res_find is None:
                         commands.append([name, "delegation_add", args])
 
                 elif action == "member":
@@ -265,9 +259,7 @@ def main():
                     # New attribute list (add given ones to find result)
                     # Make list with unique entries
                     attrs = list(set(list(res_find["attrs"]) + attribute))
-                    if len(attrs) > len(res_find["attrs"]):
-                        commands.append([name, "delegation_mod",
-                                         {"attrs": attrs}])
+                    args["attrs"] = attrs
 
             elif state == "absent":
                 if action == "delegation":
@@ -288,15 +280,18 @@ def main():
                     if len(attrs) < 1:
                         ansible_module.fail_json(
                             msg="At minimum one attribute is needed.")
-
-                    # Entries New number of attributes is smaller
-                    if len(attrs) < len(res_find["attrs"]):
-                        commands.append([name, "delegation_mod",
-                                         {"attrs": attrs}])
+                    args["attrs"] = attrs
 
             else:
                 ansible_module.fail_json(msg="Unkown state '%s'" % state)
 
+            # Manage members
+            if (
+                args and res_find and
+                not compare_args_ipa(ansible_module, args, res_find)
+            ):
+                commands.append([name, "delegation_mod", args])
+
         # Execute commands
 
         changed = ansible_module.execute_ipa_commands(commands)
diff --git a/tests/delegation/test_delegation_member_case_insensitive.yml b/tests/delegation/test_delegation_member_case_insensitive.yml
new file mode 100644
index 0000000000..5b9cd60445
--- /dev/null
+++ b/tests/delegation/test_delegation_member_case_insensitive.yml
@@ -0,0 +1,227 @@
+---
+- name: Test delegation
+  hosts: "{{ ipa_test_host | default('ipaserver') }}"
+  become: no
+  gather_facts: no
+
+  tasks:
+  - name: Test different cases for string case.
+    block:
+      # CLEANUP TEST ITEMS
+
+      - name: Ensure delegation "basic manager attributes" is absent
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          state: absent
+
+      # CREATE TEST ITEMS
+
+      - name: Ensure test group managers is present
+        ipagroup:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: managers
+
+      - name: Ensure test group employees is present
+        ipagroup:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: employees
+
+      # TESTS
+
+      - name: Ensure delegation "basic manager attributes" is present, group/membergroup mixed case
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - businesscategory
+          group: Managers
+          membergroup: Employees
+        register: result
+        failed_when: not result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, group lowercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - businesscategory
+          group: "{{ 'Managers' | lower }}"
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, group uppercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - businesscategory
+          group: "{{ 'Managers' | upper }}"
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, permission upercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: "{{ 'read' | upper }}"
+          attribute:
+          - businesscategory
+          group: managers
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, permission mixed case
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: Read
+          attribute:
+          - businesscategory
+          group: managers
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, attribute upercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - "{{ 'businesscategory' | upper }}"
+          group: managers
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, attribute mixed case
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - BusinessCategory
+          group: managers
+          membergroup: Employees
+        register: result
+        failed_when: result.changed or result.failed
+
+      # membergroup does not use case insensitive comparison
+
+      - name: Ensure delegation "basic manager attributes" is present, membergroup lowercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - businesscategory
+          group: managers
+          membergroup: "{{ 'Employees' | lower }}"
+        register: result
+        failed_when: not result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, membergroup uppercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - businesscategory
+          group: managers
+          membergroup: "{{ 'Employees' | upper }}"
+        register: result
+        failed_when: not result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" is present, group/membergroup mixed case
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - businesscategory
+          group: Managers
+          membergroup: Employees
+        register: result
+        failed_when: not result.changed or result.failed
+
+      # tests for action: member
+      - name: Ensure delegation "basic manager attributes" is present, with group and attribute in mixed case
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - BusinessCategory
+          group: Managers
+          membergroup: Employees
+
+      - name: Ensure delegation "basic manager attributes" is present, attribute mixed case
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          permission: read
+          attribute:
+          - BusinessCategory
+          group: managers
+          membergroup: employees
+
+      - name: Ensure delegation "basic manager attributes" member is present, attribute upercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          attribute:
+          - "{{ 'BusinessCategory' | upper }}"
+          action: member
+        register: result
+        failed_when: result.changed or result.failed
+
+      - name: Ensure delegation "basic manager attributes" member is present, attribute lowercase
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          attribute:
+          - "{{ 'BusinessCategory' | lower }}"
+          action: member
+        register: result
+        failed_when: result.changed or result.failed
+
+    always:
+      # CLEANUP TEST ITEMS
+
+      - name: Ensure delegation "basic manager attributes" is absent
+        ipadelegation:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: "basic manager attributes"
+          state: absent
+
+      - name: Ensure test groups are absent
+        ipagroup:
+          ipaadmin_password: SomeADMINpassword
+          ipaapi_context: "{{ ipa_context | default(omit) }}"
+          name: managers,employees
+          state: absent