When integrating a digital membership cards system with Salesforce, several technical issues commonly arise. Data synchronization between Salesforce and a .NET backend can be challenging, especially when keeping membership status, expiry dates, and access permissions updated in real time. Authentication and authorization issues are also common, particularly with OAuth, where token expiry or incorrect permission scopes can interrupt the integration. Salesforce API limits can become a concern when digital membership card are scanned frequently, as high volumes of API calls may hit governor limits. Webhook reliability is another issue, since delayed or missed events such as renewals or cancellations can cause membership data to become outdated. Field mapping errors, duplicate member records, and securely validating QR or barcode data without exposing Salesforce record IDs also require careful handling. Offline validation adds further complexity, as cached data must be accurately synced once connectivity is restored
