When the invoice is uploaded on the network, the digital tax certificate will fail in the process of adding digital signature to the electronic invoice, and the failure of the tax bureau's verification system will also lead to the failure of verification. These are caused by non-human factors, which are rare, but inevitable at present. Failed invoices must be invalidated and reopened, and cross-month invoices need to be supplemented by the tax bureau stub.

Matters needing attention in the use of electronic signature

In fact, there are many forms of electronic signature, which can be set up on a third-party platform. Electronic signature can also support handwritten annotations, so that the handwriting is delicate and true, and the stronger the handwriting, the thicker the handwriting, and the binding of handwriting data and document content to prevent illegal copying of electronic handwriting.

Electronic signature can also be used as graphic signature, but graphic signature has no legal effect. Graphic signature can be used for announcement and workflow in enterprises, providing seal making and management functions. Managers can assign the right to use the signature in the background and reset the signature. Users can set and manage passwords for the signature within their authority, and can generate and import electronic signatures with drawing software. Graphic signature can bring efficient office for enterprises and is suitable for small enterprises.