# Create or update a single OTLP integration secret header **PUT** `/v1/integrations/otlp/{id}/secret-headers/{name}` **Operation ID**: `upsertOtlpSecretHeader` **Summary**: Create or update a single OTLP integration secret header Creates or updates a single secret HTTP header for an OTLP integration. ## Tags - OpenTelemetry Integration ## Parameters - **id** (required) - path - Type: string - **name** (required) - path - Type: string ## Request Body **Content-Type**: `application/json` **Schema**: `SecretApi` ## Responses ### 204 Secret header updated successfully ### 400 Invalid header name or reserved header name ### 401 Unauthorized ### 404 Integration not found.