diff --git a/.github/workflows/api-tests.yml b/.github/workflows/api-tests.yml
index fda77abea9..127efce141 100644
--- a/.github/workflows/api-tests.yml
+++ b/.github/workflows/api-tests.yml
@@ -94,6 +94,7 @@ jobs:
               container_name: pmm-agent_pmm-server
               environment:
                 - PMM_DEBUG=1
+                - ENABLE_TELEMETRY=0
                 - PERCONA_TEST_CHECKS_INTERVAL=10s
                 - PERCONA_TEST_PLATFORM_ADDRESS=https://check-dev.percona.com
                 - PERCONA_TEST_PLATFORM_PUBLIC_KEY=RWTg+ZmCCjt7O8eWeAmTLAqW+1ozUbpRSKSwNTmO+exlS5KEIPYWuYdX
diff --git a/api-tests/README.md b/api-tests/README.md
index 6326034927..1561ddd6ce 100644
--- a/api-tests/README.md
+++ b/api-tests/README.md
@@ -1,6 +1,6 @@
 # pmm-api-tests
 
-API tests for PMM 2.x
+API tests for PMM 3.x
 
 # Setup Instructions
 
@@ -8,7 +8,7 @@ Make sure you have the latest Go version installed on your systems, execute the
 to set up API-tests in your local systems.
 
 1. Run PMM Server. This can be done by running `make env-up` in the root (`pmm`) directory.
-2. In the case below, `$PMM_SERVER_URL` should be replaced with a URL in format `http://USERNAME:PASSWORD@HOST`. For local development it's usually `http://admin:admin@127.0.0.1`.
+2. Replace `$PMM_SERVER_URL` with a URL in format `http://USERNAME:PASSWORD@HOST`. For local development it's usually `http://admin:admin@127.0.0.1`.
 
 # Usage
 
@@ -32,9 +32,9 @@ Run Docker container using the following command:
 docker run -e PMM_SERVER_URL=**pmm-server-url** IMAGENAME
 ```
 
-where `PMM_SERVER_URL` should be pointing to pmm-server.
+where `PMM_SERVER_URL` should be pointing to a running PMM Server.
 
-If pmm-server located locally:
+If pmm-server is located locally:
 
 - Use --network=host while running docker container or add both containers to the same docker network.
 - Use the insecure url if you default to a self-generated certificate.
@@ -43,5 +43,5 @@ If pmm-server located locally:
 
 All tests should follow these rules:
 
-- Tests can work in parallel and in real system, so take into account that there might be records in database.
-- Always revert changes made by test.
+- Tests can work in parallel and on a real system, so take into account that there might be records in database.
+- Always revert changes made by tests.
diff --git a/api-tests/backup/backups_test.go b/api-tests/backup/backups_test.go
index e3c9aa981d..2e346daade 100644
--- a/api-tests/backup/backups_test.go
+++ b/api-tests/backup/backups_test.go
@@ -146,10 +146,10 @@ func TestScheduleBackup(t *testing.T) {
 			require.NotNil(t, backup)
 
 			// Assert change
-			assert.Equal(t, body.Enabled, backup.Enabled)
-			assert.Equal(t, body.Name, backup.Name)
-			assert.Equal(t, body.Description, backup.Description)
-			assert.Equal(t, body.CronExpression, backup.CronExpression)
+			assert.Equal(t, pointer.GetBool(body.Enabled), backup.Enabled)
+			assert.Equal(t, pointer.GetString(body.Name), backup.Name)
+			assert.Equal(t, pointer.GetString(body.Description), backup.Description)
+			assert.Equal(t, pointer.GetString(body.CronExpression), backup.CronExpression)
 			assert.Equal(t, "backup_folder", backup.Folder)
 
 			_, err = client.RemoveScheduledBackup(&backups.RemoveScheduledBackupParams{
diff --git a/api-tests/pmm-api-tests-output.txt b/api-tests/pmm-api-tests-output.txt
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/managed/services/grafana/client.go b/managed/services/grafana/client.go
index 915f376083..c58f000130 100644
--- a/managed/services/grafana/client.go
+++ b/managed/services/grafana/client.go
@@ -447,12 +447,10 @@ func (c *Client) CreateAlertRule(ctx context.Context, folderName, groupName stri
 	}
 
 	if err := c.do(ctx, "POST", fmt.Sprintf("/api/ruler/grafana/api/v1/rules/%s", folderName), "", authHeaders, body, nil); err != nil {
-		if err != nil {
-			if cErr, ok := errors.Cause(err).(*clientError); ok { //nolint:errorlint
-				return status.Error(codes.InvalidArgument, cErr.ErrorMessage)
-			}
-			return err
+		if cErr, ok := errors.Cause(err).(*clientError); ok { //nolint:errorlint
+			return status.Error(codes.InvalidArgument, cErr.ErrorMessage)
 		}
+		return err
 	}
 
 	return nil