diff --git a/lib/Service/RequestSignatureService.php b/lib/Service/RequestSignatureService.php
index 65d821dc46..8baafeb6da 100644
--- a/lib/Service/RequestSignatureService.php
+++ b/lib/Service/RequestSignatureService.php
@@ -612,13 +612,15 @@ public function validateSigners(array $data): void {
 		}
 	}
 
-	public function unassociateToUser(int $fileId, int $signRequestId): void {
+	public function unassociateToUser(int $fileId, int $signRequestId, bool $notify = true): void {
 		$file = $this->fileMapper->getById($fileId);
 		$signRequest = $this->signRequestMapper->getByFileIdAndSignRequestId($fileId, $signRequestId);
 		$deletedOrder = $signRequest->getSigningOrder();
 		$groupedIdentifyMethods = $this->identifyMethod->getIdentifyMethodsFromSignRequestId($signRequestId);
 
-		$this->dispatchCancellationEventIfNeeded($signRequest, $file, $groupedIdentifyMethods);
+		if ($notify) {
+			$this->dispatchCancellationEventIfNeeded($signRequest, $file, $groupedIdentifyMethods);
+		}
 
 		try {
 			$this->signRequestMapper->delete($signRequest);
@@ -632,7 +634,7 @@ public function unassociateToUser(int $fileId, int $signRequestId): void {
 				->setFile($file)
 				->reorderAfterDeletion($file->getId(), $deletedOrder);
 
-			$this->propagateSignerDeletionToChildren($file, $signRequest);
+			$this->propagateSignerDeletionToChildren($file, $groupedIdentifyMethods);
 			$this->revertStatusToDraftIfNoSignersRemain($file);
 		} catch (\Throwable) {
 		}
@@ -647,18 +649,20 @@ private function revertStatusToDraftIfNoSignersRemain(FileEntity $file): void {
 		}
 	}
 
-	private function propagateSignerDeletionToChildren(FileEntity $envelope, SignRequestEntity $deletedSignRequest): void {
+	/**
+	 * @param array<string, array<IIdentifyMethod>> $identifyMethods
+	 */
+	private function propagateSignerDeletionToChildren(FileEntity $envelope, array $identifyMethods): void {
 		if ($envelope->getNodeType() !== 'envelope') {
 			return;
 		}
 
-		$children = $this->fileMapper->getChildrenFiles($envelope->getId());
-
-		$identifyMethods = $this->identifyMethod->getIdentifyMethodsFromSignRequestId($deletedSignRequest->getId());
 		if (empty($identifyMethods)) {
 			return;
 		}
 
+		$children = $this->fileMapper->getChildrenFiles($envelope->getId());
+
 		foreach ($children as $child) {
 			try {
 				$this->identifyMethod->clearCache();
@@ -668,7 +672,7 @@ private function propagateSignerDeletionToChildren(FileEntity $envelope, SignReq
 				);
 
 				if ($childSignRequest->getId()) {
-					$this->unassociateToUser($child->getId(), $childSignRequest->getId());
+					$this->unassociateToUser($child->getId(), $childSignRequest->getId(), notify: false);
 				}
 			} catch (\Throwable) {
 				continue;
diff --git a/tests/integration/features/sign/cancel.feature b/tests/integration/features/sign/cancel.feature
index 92a8108189..1aea021764 100644
--- a/tests/integration/features/sign/cancel.feature
+++ b/tests/integration/features/sign/cancel.feature
@@ -12,12 +12,14 @@ Feature: sign-request-cancel
     And sending "get" to ocs "/apps/libresign/api/v1/file/list?details=1"
     And fetch field "(FILE_ID)ocs.data.data.0.id" from previous JSON response
     And fetch field "(SIGN_REQUEST_ID)ocs.data.data.0.signers.0.signRequestId" from previous JSON response
+    And reset notifications of user "signer1"
     When sending "delete" to ocs "/apps/libresign/api/v1/sign/file_id/<FILE_ID>/<SIGN_REQUEST_ID>"
     Then the response should have a status code 200
     When as user "signer1"
     And sending "get" to ocs "/apps/notifications/api/v2/notifications"
     Then the response should be a JSON array with the following mandatory values
       | key                      | value                                             |
+      | (jq).ocs.data \| length | 1 |
       | (jq).ocs.data[0].subject | admin canceled the signature request for document |
 
   Scenario: Delete draft request does not send cancellation notification
@@ -79,3 +81,178 @@ Feature: sign-request-cancel
     Then the response should be a JSON array with the following mandatory values
       | key                   | value |
       | (jq).ocs.data.data[0].status | 0 |
+
+  Scenario: Delete envelope signer removes only that signer from both documents
+    Given as user "admin"
+    And user "signer1" exists
+    And user "signer2" exists
+    And run the command "libresign:configure:openssl --cn test" with result code 0
+    And sending "post" to ocs "/apps/libresign/api/v1/request-signature"
+      | files | [{"base64":"<SMALL_VALID_PDF_BASE64>","name":"First.pdf"},{"base64":"<SMALL_VALID_PDF_BASE64>","name":"Second.pdf"}] |
+      | signers | [{"identifyMethods":[{"method":"account","value":"signer1"}]},{"identifyMethods":[{"method":"account","value":"signer2"}]}] |
+      | name | Envelope cancellation |
+      | status | 0 |
+    And the response should have a status code 200
+    And fetch field "(ENVELOPE_UUID)ocs.data.uuid" from previous JSON response
+    And sending "patch" to ocs "/apps/libresign/api/v1/request-signature"
+      | uuid | <ENVELOPE_UUID> |
+      | signers | [{"identifyMethods":[{"method":"account","value":"signer1"}]},{"identifyMethods":[{"method":"account","value":"signer2"}]}] |
+      | status | 1 |
+    And the response should have a status code 200
+    And sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<ENVELOPE_UUID>"
+    And the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data.nodeType | envelope |
+      | (jq).ocs.data.files \| length | 2 |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.status) | [1,1,1] |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map([.signers[].identifyMethods[] \| select(.method == "account").value] \| sort) | [["signer1","signer2"],["signer1","signer2"],["signer1","signer2"]] |
+    And fetch field "(ENVELOPE_ID)ocs.data.id" from previous JSON response
+    And fetch field '(SIGN_REQUEST_ID)(jq).ocs.data.signers[] | select(any(.identifyMethods[]; .method == "account" and .value == "signer1")) | .signRequestId' from previous JSON response
+    And fetch field "(FIRST_UUID)ocs.data.files.0.uuid" from previous JSON response
+    And fetch field "(SECOND_UUID)ocs.data.files.1.uuid" from previous JSON response
+    And reset notifications of user "signer1"
+    And reset activity of user "signer1"
+    And set the email of user "signer1" to "signer1@domain.test"
+    And activity preference "notify_email_libresign_sign_request_canceled" for user "signer1" is set to "1"
+    And my inbox is empty
+    When sending "delete" to ocs "/apps/libresign/api/v1/sign/file_id/<ENVELOPE_ID>/<SIGN_REQUEST_ID>"
+    Then the response should have a status code 200
+    When sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<ENVELOPE_UUID>"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data.files \| length | 2 |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.status) | [1,1,1] |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.signers \| length) | [1,1,1] |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map([.signers[].identifyMethods[] \| select(.method == "account").value]) | [["signer2"],["signer2"],["signer2"]] |
+    When sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<FIRST_UUID>"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data.signers \| length | 1 |
+      | (jq)[.ocs.data.signers[].identifyMethods[] \| select(.method == "account").value] | ["signer2"] |
+    When sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<SECOND_UUID>"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data.signers \| length | 1 |
+      | (jq)[.ocs.data.signers[].identifyMethods[] \| select(.method == "account").value] | ["signer2"] |
+    When as user "signer1"
+    And sending "get" to ocs "/apps/notifications/api/v2/notifications"
+    Then the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data \| length | 1 |
+      | (jq).ocs.data[0].subject | admin canceled the signature request for Envelope cancellation |
+    And there should be 1 emails in my inbox
+    When sending "get" to ocs "/apps/activity/api/v2/activity/libresign?since=0"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data \| length | 1 |
+
+  Scenario: Delete last envelope signer reverts both documents to draft without orphan requests
+    Given as user "admin"
+    And user "signer1" exists
+    And run the command "libresign:configure:openssl --cn test" with result code 0
+    And sending "post" to ocs "/apps/libresign/api/v1/request-signature"
+      | files | [{"base64":"<SMALL_VALID_PDF_BASE64>","name":"First.pdf"},{"base64":"<SMALL_VALID_PDF_BASE64>","name":"Second.pdf"}] |
+      | signers | [{"identifyMethods":[{"method":"account","value":"signer1"}]}] |
+      | name | Last envelope signer |
+      | status | 0 |
+    And the response should have a status code 200
+    And fetch field "(ENVELOPE_UUID)ocs.data.uuid" from previous JSON response
+    And sending "patch" to ocs "/apps/libresign/api/v1/request-signature"
+      | uuid | <ENVELOPE_UUID> |
+      | signers | [{"identifyMethods":[{"method":"account","value":"signer1"}]}] |
+      | status | 1 |
+    And the response should have a status code 200
+    And sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<ENVELOPE_UUID>"
+    And the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data.nodeType | envelope |
+      | (jq).ocs.data.files \| length | 2 |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.status) | [1,1,1] |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map([.signers[].identifyMethods[] \| select(.method == "account").value]) | [["signer1"],["signer1"],["signer1"]] |
+    And fetch field "(ENVELOPE_ID)ocs.data.id" from previous JSON response
+    And fetch field '(SIGN_REQUEST_ID)(jq).ocs.data.signers[] | select(any(.identifyMethods[]; .method == "account" and .value == "signer1")) | .signRequestId' from previous JSON response
+    And fetch field "(FIRST_UUID)ocs.data.files.0.uuid" from previous JSON response
+    And fetch field "(SECOND_UUID)ocs.data.files.1.uuid" from previous JSON response
+    And reset notifications of user "signer1"
+    And reset activity of user "signer1"
+    And set the email of user "signer1" to "signer1@domain.test"
+    And activity preference "notify_email_libresign_sign_request_canceled" for user "signer1" is set to "1"
+    And my inbox is empty
+    When sending "delete" to ocs "/apps/libresign/api/v1/sign/file_id/<ENVELOPE_ID>/<SIGN_REQUEST_ID>"
+    Then the response should have a status code 200
+    When sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<ENVELOPE_UUID>"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data.files \| length | 2 |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.signers) | [[],[],[]] |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.status) | [0,0,0] |
+    When sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<FIRST_UUID>"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data.signers | [] |
+      | (jq).ocs.data.status | 0 |
+    When sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<SECOND_UUID>"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data.signers | [] |
+      | (jq).ocs.data.status | 0 |
+    When as user "signer1"
+    And sending "get" to ocs "/apps/notifications/api/v2/notifications"
+    Then the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data \| length | 1 |
+      | (jq).ocs.data[0].subject | admin canceled the signature request for Last envelope signer |
+    And there should be 1 emails in my inbox
+    When sending "get" to ocs "/apps/activity/api/v2/activity/libresign?since=0"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data \| length | 1 |
+
+  Scenario: Directly deleting a child signer still sends its cancellation notification
+    Given as user "admin"
+    And user "signer1" exists
+    And run the command "libresign:configure:openssl --cn test" with result code 0
+    And sending "post" to ocs "/apps/libresign/api/v1/request-signature"
+      | files | [{"base64":"<SMALL_VALID_PDF_BASE64>","name":"First.pdf"},{"base64":"<SMALL_VALID_PDF_BASE64>","name":"Second.pdf"}] |
+      | signers | [{"identifyMethods":[{"method":"account","value":"signer1"}]}] |
+      | name | Direct child cancellation |
+      | status | 0 |
+    And the response should have a status code 200
+    And fetch field "(ENVELOPE_UUID)ocs.data.uuid" from previous JSON response
+    And sending "patch" to ocs "/apps/libresign/api/v1/request-signature"
+      | uuid | <ENVELOPE_UUID> |
+      | signers | [{"identifyMethods":[{"method":"account","value":"signer1"}]}] |
+      | status | 1 |
+    And the response should have a status code 200
+    And sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<ENVELOPE_UUID>"
+    And the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.status) | [1,1,1] |
+    And fetch field "(CHILD_ID)ocs.data.files.0.id" from previous JSON response
+    And fetch field '(SIGN_REQUEST_ID)(jq).ocs.data.files[0].signers[] | select(any(.identifyMethods[]; .method == "account" and .value == "signer1")) | .signRequestId' from previous JSON response
+    And reset notifications of user "signer1"
+    When sending "delete" to ocs "/apps/libresign/api/v1/sign/file_id/<CHILD_ID>/<SIGN_REQUEST_ID>"
+    Then the response should have a status code 200
+    When sending "get" to ocs "/apps/libresign/api/v1/file/validate/uuid/<ENVELOPE_UUID>"
+    Then the response should have a status code 200
+    And the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.signers \| length) | [1,0,1] |
+      | (jq)[.ocs.data, .ocs.data.files[]] \| map(.status) | [1,0,1] |
+    When as user "signer1"
+    And sending "get" to ocs "/apps/notifications/api/v2/notifications"
+    Then the response should be a JSON array with the following mandatory values
+      | key | value |
+      | (jq).ocs.data \| length | 1 |
+      | (jq).ocs.data[0].subject | admin canceled the signature request for First |