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e-Invoice rejected due to Mismatch in the Field document number

Cause

You may encounter the following errors, when the Voucher Number (Document Number) does not meet the required format, such as exceeding 16 characters, containing spaces or invalid special characters, or starting with an invalid character (0 or /).

• The field document number must match the expression'((a-zA-Z1-9)(1)(a-zA-Z0-9/-)(0,15))$’
• The document number doesn’t match with regular expression

Resolution

Document Number refers to the Voucher No. entered during voucher creation.

A Document Number must fulfill the following criteria:

• Maximum 16 characters
• No spaces
• Only / (forward slash) is allowed as a special character
• The first character cannot be 0 or / (forward slash)

1. Open the Voucher in the alteration mode.
2. Update the Invoice no. and save the voucher to generate e-Invoice.